Mobile Tech & Gadgets Archives - Page 1323 of 1330

Ana Rosa in the mornings

January 23, 2025 by usatoday24

Ana Rosa Quintana returns to the mornings. The one that was absolute winner of Mediaset mornings For 18 years he abandons his fleeting experiment in the afternoons, in which attempts have been made to raise the low rates of Telecinco after the disappearance of ‘save me‘. It is an important change (and desired by the presenter, who has never felt comfortable in her new format), and above all, it is further proof of the need that Telecinco has to strengthen some proposal from your grill beyond the realities. Failed afternoons. Two years ago, Alessandro Salem, CEO of Mediaset at the time, asked Ana Rosa Quintana to try to fill the space left by ‘Sálvame’. Despite a good first year, it has not been able to stand up to Sonsoles Ónega, much more established, and the essential traveling companions who reinforce and continue the bet have not had much better luck: ‘Jorge’s Diary’, the vehicle for Jorge Javier Vázquez, after the disappearance of ‘Sálvame’, has not been able to find a space; and ‘Chain Reaction’ has done well while it has had its Mozos de Arousa, but once they are gone, the program fails to maintain interest. And that’s without talking about the current battle for access. prime timewhich with ‘La Revuelta’ and ‘El hormiguero’, Tele5 already considered lost. Again in the mornings. The reformulation of the mornings starting on February 3 will not be total, and both Ana Terradillos and Joaquín Prat, who were previously part of Ana Rosa’s team, will maintain the spaces with which Tele5 covered the slot after the presenter’s passage in the afternoons. Mediaset talks about “a remodeling of the network’s morning slot”, and there will be changes in the formats and durations, but both ‘The Critical View’ by Terradillos and ‘Let’s See’ by Prat will continue. Total domination. ‘TardeAR’ continues without Ana Rosa (perhaps the name change will be inevitable, but it is enough to dispense with the capital letters), although its current presenters, Frank Blanco and Verónica Dulanto, continue. With this change, the one that is undoubtedly the big winner is Unicorn Content, owned by the presenter, who, as stated in a statement about the change, will be on TeleCinco “from first thing in the morning until three o’clock, and then ‘TardeAR ‘from 5:40 p.m. to eight o’clock.’ A true absolute mastery of the channel grill. Bad figures. The afternoon, as we have mentioned, had not worked for Ana Rosa for a while. On December 17, ‘TardeAR’ made 10.7%, and since then, more than a month later, it has always remained below 10%, sometimes with figures as low as 7.7% this Monday , which may have precipitated his return to the mornings. To his rival on Antena 3, Sonsoles Ónega, it happens just the opposite: rarely falls below 10% share since last summer, and sometimes it reaches figures such as the 12.7% that was the maximum in October 2024, taking two and a half points ahead of Ana Rosa. What is left for Telecinco. Safe tricks, very few. It seems more or less guaranteed that the mornings will be yours again (although right now They’re not doing so well either.), but at the cost of the afternoon being extremely destabilized, with a program that is already in free fall in audiences, and that without its main supporter, may continue to decline. But the worst comes at night: although ‘Big Brother’, ‘Temptation Island’ and others realities they work well (without being infallible), the lack of a powerful product at the time of ‘El Hormiguero’ and ‘La Revuelta’ prevents there from being a carryover effect, and many times the public has to join their proposals “from scratch”. prime timewhich has made ambitious bets like ‘Next Level Chef’ puncture loudly. Header | Mediaset In Xataka | Broncano, Giró and Buenafuente: the plan of the new director of TVE to turn the ratings war upside down

These are the autonomous communities that maintain the discounts

January 23, 2025 by usatoday24

Yesterday, January 22, 2025, the Government failed to carry out the Omnibus Decree that contemplated the pension increasethe extension of the MOVES III Plan and its aid to the electric car or the public transport subsidywith free or discounted multi-trip passes and tickets. The latter has had a direct consequence among those who use public transport daily because they have seen how the same transport passes that were discounted yesterday have now returned to their official prices before the discount. Óscar Puente, Minister of Transport, assured yesterday that public transport passes acquired before the refusal was given Omnibus Decree of the Government will maintain the advantages until the end of the first quarter (when said subscriptions had to be renewed) since the user had the “acquired right” with the purchase of the titles. However, those who had not obtained the titles before yesterday’s vote will not have these purchase aids. Aid that also affects regional titles. In the latter case, the transport subsidy is maintained if the town councils or autonomous communities responsible for them undertake to extend their contribution. Some of them have already confirmed that this will be the case. The autonomous communities that will maintain aid for public transport in 2025 Just a few days ago, with the first hours of 2025, the Government confirmed that it was extending aid to public transport until June 30, 2025. A measure that It would cost us 1.6 billion euros and that came with another promise: a single public transport ticket for all of Spain starting in the second half of the year. Aid for public transport, however, reached citizens through two sources. In those of state ownership (such as free quarterly subscriptions for Media Distancia with predefined origin and destination, the 50% reduction in the price of Avant multi-trip tickets or the free state-managed bus lines), the aid has been completely eliminated as it does not have the support of the Congress of Deputies. However, passes and multi-trip tickets of municipal or regional extension within the same autonomous community had double funding in the aid. The responsible organizations that wanted to benefit from the aid had the obligation to offer these multi-trip passes and tickets with at least a 50% discount. In order to apply this discount, the regional government was obliged to commit to a minimum aid of 20% of the original price and the State would support with the remaining 30% until reaching that minimum 50% reduction. Without the contribution of the State and the extension of aid, the autonomous communities and town councils have three options: Eliminate aid for public transport Maintain your minimum contribution of 20% or the one you have been applying until now Assume the State’s part and maintain the 50% discount, accepting that the entire final amount has to come from its coffers. In this context, some autonomous communities have already confirmed that they will maintain their aid to public transport in one way or another: Community of Madrid: It will maintain the 60% discount that its users already enjoyed. The regional government matched the State contribution and, therefore, the reduction in the final price was 60%. Government spokespersons in the region have confirmed that They will maintain the aid “for the moment” and therefore the prices They are still the ones you find in this link.Catalonia: At least temporarily, aid for public transport in Catalonia is maintained. It has been confirmed by Metropolitan Transport Authority (ATM) who claim that prices are maintained at a 50% discount “until the Ministry of Transport and Sustainable Mobility officially publishes or communicates” the withdrawal of its 30% state aid. From then on, the ATMs of Barcelona, Lleida, Tarragona and Girona will maintain the 20% aid that corresponded to them until now but the state contribution will be lost. the Basque Country: As stated EFEaid for public transport in the Basque Country will also remain at a 50% discount until the Government of Spain confirms the withdrawal of its part of the aid. At this time, 20% of Basque aid is provided, 10% by the Autonomous Community and the remaining 10% by the provincial councils and town councils. Regarding the application in each City Council, in Bilbao the 50% discounts are maintained on the barik card and in temporary titles until February 20. After this date, if the State does not maintain its 30% aid, the reduction will be 20%. In San Sebastián it has been confirmed that the 50% discounts are maintained although no date has been specified and in Vitoria they will be maintained, at least, until January 31, according to Basque Chronicle. Valencian Community: According to The Sixththe Generalitat Valenciana is studying to what extent it can maintain transport aid, which, for the moment, will continue to receive a 50% discount until next December 31. Andalusia: As stated Seville newspaperthe Junta de Andalucía will maintain, at least, the 20% discount on the price of passes and multi-trip tickets that it already supported with its funds. This discount is active throughout the Autonomous Community and, therefore, also in the Metro services of Seville, Málaga and Granada.Galicia: Pick up ABC that the Xunta de Galicia will also maintain transport aid at 50% until the end of January. From then on, the aid will be reduced to 20% corresponding to the section provided by the autonomous communities.Asturias: The Principality of Asturias has confirmed in X that the CONECTA card is used throughout the Autonomous Community will continue to maintain exactly the same current rates. The card can be recharged monthly up to a maximum of 30 euros (unused money is returned) and with it you can take trips that are divided into zones. Prices can be consulted at this link.Castile and León: Pick up EFE that the Junta de Castilla y León has confirmed that it will maintain public transport subsidies that depend on the regional contribution. Thus, the Avant service will maintain a 20% discount and metropolitan transport a 20% discount. Rural transport will … Read more

They could be from the new Glyph rear of their next mobile, the Phone (3)

January 23, 2025 by usatoday24

Just yesterday the British manufacturer returned to the fray with the Pokémon which will be linked to some of the mobile phones that it plans to launch this year. There are several possibilities and everything seems to indicate that they would be the Phone (3) and the (3a), and if anything has to modify or change Nothing is the back, precisely what seems to be drawn in some sketches that the British company has shared. If there is a manufacturer that likes to play with mystery with its imminent launches, this would be Nothing, and since it began its journey as a new mobile manufacturer, started posting images of insects to give clues about your next Phone (2) or the same Phone (2a) from last year. In that game he now finds himself publishing five images from his Instagram account in which you can see a series of sketches that draw part of the design concepts of some of the mobiles which he plans to launch this year. They can look like pieces of a puzzle or simply loose concepts that throw ideas about the change that must occur on the back of your mobile. And it is precisely that he received a lot of criticism with the Nothing Phone (2) when it was launched, since the back was very similar to Phone (1). These criticisms led me to play with another “Glyph” in the design of the next Telephone (2a) that he launched last year in Spain, so it is possible that those sketches made with erratic linesbut that draw shapes, be they part of the back of the next Phone (3) or (3a). Nothing’s sketches nothing The Free Android Of them there is an image that does not fit into the rest or in some way it cannot be related, and that is that they look like two boxes with an oval shadow that do not make it clear what they are referring to; which could be part of the rear with which it can move away from the design of previous mobile phones and thus powerfully draw attention again as it has done with many of its technological products. Be that as it may, mystery once again surrounds a Nothing Phone (3) mobile that was anticipated by Carl Pei himself at the beginning of the year in an email that he sent to his employees to make it clear that this year his commitment is going to be greater. In fact, he announced that Nothing was looking for capital to invest in the technology necessary to bring generative artificial intelligence to its new premium; and even more so when this time it wants to elevate the mobile phone category to catch up with those from Samsung, Apple and others. All five images are available from your account at instagram.

A UK nuclear submarine caught a Russian ship in front of the nation’s undersea cables. It’s the second time in three months

January 23, 2025 by usatoday24

If yesterday Taiwan was the nation that suffered a new cut of submarine cablestoday the tension moves to Europe, to be more exact, to British waters. A few hours ago it was known, through the UK governmentabout events that occurred last fall with a mysterious Russian ship called Yantar. The problem is that it has reappeared in the vicinity of the nation’s underwater communication channels, and this time it has been “escorted” by a Royal Navy nuclear submarine. Recent raids. The UK has raised its voice about what appears to be a growing threat of aggression from Russia following the recent Yantar spy ship raid in British waters for the second time in just three months, which has been interpreted as an attempt by the Kremlin to evaluate the country’s defense capabilities. According to British Defense Secretary John Healey, a nuclear submarine and two Royal Navy ships were deployed for two days to monitor the activity of the Yantar, described as a vessel designed for intelligence gathering and mapping of critical underwater infrastructureincluding telecommunications and power cables connecting the UK to mainland Europe. This incursion, furthermore, occurs in that context of growing concern over the security of key infrastructure in Europe that we have been talking about, and at a time when Western intelligence services have warned about Russia’s intention to use sabotage as a tool of pressure after the war in Ukraine. The Yantar and its history. The Yantar had previously been detected in November 2024when it was observed to remain over areas of strategic submarine infrastructure of the United Kingdom. On that occasion, Healey authorized a Royal Navy nuclear submarine to surface near the Russian ship, sending a clear message that its movements were being closely monitored. During the raid, The Yantar was also escorted by the Russian frigate Admiral Golovko and the tanker Vyazmawho left the area after the British response. Russian ship capabilities. The Yantar, operated by the Main Directorate of Deep Sea Research of the Russian Navy and “officially” a project 22010 oceanographic research vessel, is a ship specifically designed for the collection of information on underwater infrastructure. It is equipped with autonomous submersibles capable of operating at depths of up to 5,500 metersallowing you to identify, map and even manipulate submarine cables essential for Europe’s connectivity and energy supply. In this regard, and although its capabilities could allow acts of sabotage, security experts, such as Justin Crump of the intelligence firm Sibylline, point out that the main purpose of the vessel appears to be aimed at collecting sensitive information for future strategic operations, rather than direct action. Concern about Russian sabotage. There is no doubt that Yantar’s activities have generated concern in the United Kingdom and throughout Europe, especially after recent incidents in the Baltic Sea, where underwater energy and telecommunications cables were found cut in what have been suspected to be deliberate acts. of sabotage, unconfirmed acts and that, as we told yesterdayofficial investigations point to other types of problems derived from inexperience. Be that as it may, what is certain is that NATO has responded by intensifying its presence in the region with operation Baltic Sentrydeploying warships, air patrols and drones to protect critical underwater infrastructure. What the United Kingdom says. After what happened for the second time, the British Defense Secretary has emphasized that Russia represents the most immediate and significant threat to the United Kingdomand has reiterated the country’s commitment to taking firm measures to protect its national security. As part of this strategy, Royal Navy rules of engagement have been updated to allow closer monitoring of Russian vessels suspected of hostile activities. In fact, the most recent incursion of the Yantar into British waters caused HMS Somerset and HMS Tyne will escort the Russian ship until its departure for Dutch watersensuring that he did not remain in the area for prolonged periods. What does seem crystal clear is that the return of the Yantaring into British waters highlights the growing Russian threat to the UK’s critical infrastructure and the need for constant surveillance and a determined response. Image | Royal Navy In Xataka | The investigations into the cut submarine cables in the Baltic have taken a turn: it was not Russia, it was inexperience In Xataka | If China once again displays itself against Taiwan in the next two years, it will find a surprise: the US army

the first plasma produced by the SMART reactor invites us to optimism

January 23, 2025 by usatoday24

We have news of the experimental reactor of nuclear fusion from the University of Seville. Very good news. The SMART Tokamak plan aims to develop a type reactor tokamak extraordinarily compact. In fact, the acronym SMART comes from the English name ‘SMall Aspect Ratio Tokamak’. Building a compact fusion energy reactor is not easy. In fact, ITER (International Thermonuclear Experimental Reactor), the experimental fusion reactor that an international consortium led by Europe is building in the French town of Cadarache, is gigantic for several good reasons. The most relevant is that a large vacuum chamber together with high intensity magnetic fields allow the plasma to be stabilized more effectively. And the other advantage is that This design minimizes energy loss. The SMART experimental fusion reactor that the engineers at the University of Seville are working on does not have the titanic size that ITER will have in its favor, but this does not mean that it will not come to fruition. In fact, its strategy is radically different from that of ITER and its design is surprisingly innovative. In any case, the development of SMART is being carried out within the international initiative Fusion2Gridso Seville researchers are not alone in this adventure. They work side by side with scientists from the Plasma Physics Laboratory at Princeton University (USA). SMART has generated the first plasma with negative triangularity The vacuum chamber in which the fusion of the deuterium and tritium nuclei, the two isotopes of hydrogen involved in the fusion reaction, occurs does not need to be as large in the SMART reactor as in ITER or other experimental fusion machines because because it has negative triangularity in its favor. Broadly speaking, triangularity identifies the geometry of the plasma within the tokamak by being confined inside the magnetic field. SMART’s negative triangularity causes the plasma cross section to compress toward the center By adopting positive triangularity, which is common in experimental fusion reactors of the type tokamakthe widest part of the triangular section of the plasma is outside the center of the vacuum chamber. This geometry is very well known, and it works, although it is not optimal to control plasma turbulence. In contrast, SMART’s negative triangularity causes the plasma cross section to compress toward the center, so the widest part faces the inside of the vacuum chamber. Negative triangularity has two major advantages. On the one hand, it is very effective in controlling plasma instabilities. And, in addition, it helps to distribute the heat at the base of the reactor in a more homogeneous way. Its biggest problem is that this technology is still young and requires much more research. Fortunately, researchers at the University of Seville are on the right track. On a very good path. And they have already done the first plasma testa milestone that marks the beginning of the experimental phase of the SMART reactor. “We were all very excited to see the first magnetically confined plasma, and we look forward to harnessing the capabilities of the SMART reactor together with the international scientific community (…) SMART has attracted enormous interest around the world“, Eleonora Viezzer has declaredphysicist and professor at the University of Seville. The initial investment in this project has been slightly more than five million eurosbut over its estimated 10 years of development it will presumably require a total investment of about 500 million euros. Image | University of Seville More information | Nuclear Fusion | University of Seville In Xataka | “We are already on the last step”: how Spain has obtained the key to making nuclear fusion a reality

so you can use it and get the most out of it

January 23, 2025 by usatoday24

Movistar just announce a very interesting agreement with Perplexity. Thus, Movistar customers will be able to access for free to the premium version of the Perplexity service, called Perplexity Pro. Perplexity is a “conversational search engine” that since its beginnings It is proposing a paradigm shift in the way we search for information on the Internet. Your answers collect data from trusted sources and then built using AI models. The result is clear and complete answers that are certainly a great alternative to those provided by traditional search engines, but this platform also goes one step further. Perplexity allows the client to expand and deepen the investigation by providing the possibility of asking follow-up questions related to the answers obtained, so that the client can dialogue with the answer engine in a personalized way. Movistar customers will be able to activate the option from the website or from the miMovistar app. Thanks to this agreement, the miMovistar service, along with the rest of Movistar’s contracting options, includes from today free access to Perplexity Pro for 12 months, a version that works using the most advanced AI models in the world (GPT -4o, OpenAI o1, Grok-2 and Claude 3.5). So you can use it and take advantage of all its options In order to activate the service we will have to go to our personal area on the Movistar website and in the miMovistar app. Movistar customers will have a personalized URL that they can use up to five times to activate the Pro version of the service for 12 months, so you can share it with family and friends. The service Perplexity Pro offers important advantages over the free service. Among them the following stand out: Pro Searches: Up to 300 Pro searches per day, which are deeper and more detailed and may follow a “reasoning” process for more complex searches. Normal searches unlimited. Access to powerful AI models: from Perplexity we can choose advanced models for the responses. Among them, GPT-4 Omni, Claude 3 Sonnet/Opus and Sonar Large 32k (based on Llama 3 70b) stand out. File upload: It is possible to upload documents in PDF or CSV for example in addition to images to take advantage of the multimodal capabilities of these models. API Credit: It will also be possible to experiment with the API thanks to the five dollars a month of credit granted. With the API it is possible experiment with the latest Open Source LLMs, such as Llama 3, and the Perplexity Online LLMs. An agreement that strengthens the alliance between both companies The agreement comes shortly after Wayra announced in October 2024 that it was investing in Perplexitythus joining other companies such as NVIDIA or Databricks that participated in that investment round. The agreement with Movistar is part of a global agreement between Telefónica and Perplexity, which is already being executed in Brazil and the United Kingdom, and which will soon be launched in other countries where Telefónica operates. Likewise, Telefónica also announced that it is offering the first Perplexity experience through television worldwide, an app hosted within the Movistar Plus+ catalog that allows customers who have a UHD decoder to easily interact with Perplexity. Users can ask about any topic through the Movistar Plus+ Voice Remote by pressing the Aura button, and receive text responses generated by AI in real time that will be displayed on the screen and can also be heard. In Xataka | Perplexity wants a piece of Google’s pie: the AI search engine already processes 100 million queries a week

Spend a moment of real panic with these books that review the grotesque world of 80s horror and horror noire

January 23, 2025 by usatoday24

We peer into terror in ‘paper maze‘, the fantastic literature podcast that we do at Xataka in collaboration with Minotauro, and we do it with a couple of new features that combine classic and modern. On the one hand, an essay that delves into the disconcerting and insane world of horror paperbacks from the eighties. And on the other, a compilation of stories focused on black horror, the subgenre most concerned with the most terrible and chilling side of racial conflicts. For this he accompanies us Bernard J. Lemanan expert in horror literature with whom we break down these two volumes edited by Minotauro, and which confront the past, present and future of the genre in a unique mix. Paperbacks from Hell is the work of Grady Hendrix, author of novels that we have already talked about here, such as ‘How to sell a haunted house‘. Here he writes a wonderful essay analyzing with detail and a sense of humor the incredible panorama of brutal and exploitative horror literature of the eighties. With a chilling selection of covers and a good edition by Minotauro, which has taken care of the translations of the titles that have been published in Spain, it is an essential volume for anyone who wants to find out more about how the horror genre has gotten to where it is right now. . Jordan Peele, director of films like ‘Let Me Out’, ‘Nope’ and ‘Us’ is responsible for compiling the stories of ‘out there screaming‘, a volume of horror noire perfect for entering very uncomfortable areas of the genre. All the stories in the book have a racial component, and all genres are explored: from pure and simple satire to new meat, including horror of manners. Varied and very combative. How can you subscribe? If you liked this episode of the second season or if you want listen to ‘Paper Labyrinth’ from your favorite podcast applicationyou can subscribe through the main platforms: You can also listen to us and see us on our Youtube channel. In Xataka | Overpopulation taken to the limit, ultra-space thieves and other science fiction milestones by Harry Harrison

The obsession with slim mobile phones is back. And there are several reasons

January 23, 2025 by usatoday24

The new ones Samsung Galaxy S25 mark the beginning of the year in the high-end smartphone range, but they also tell us about the beginning of a new trend: the war to create the thinnest smartphone. Samsung briefly showed us the Galaxy S25 Edge and rumors of a iPhone 17 Air for this fall they are too coincidental to ignore them, in the absence of official confirmation. Both promise to be the thinnest phones ever created by their respective manufacturers. The question is whether we really need thinner phones. History has taught us that The obsession with thinness usually has consequences. The 2014 iPhone 6, with its 6.9 mm, was so thin that it ended up starring in the bendgate. AND the first Galaxy Edgealthough innovative, sacrificed durability for design. The interesting thing about this trend is not so much the technology itself, but the chosen moment. We have been seeing for years how manufacturers have been thickening their devices to include larger batteries, better camera systems and more sensors. Apple went from 7.6 mm on the iPhone 8 to 8.25 mm on the iPhone 16 Pro. Samsung did the same with its Galaxy line. And users never complained about their phones being “too thick”. In any case, it is common to read a fairly recurring request: more battery even at the cost of greater thickness. And although Oppo, Huawei or Vivo have already launched models in this thickness range in the past, they never set a real commercial trend. Apple and Samsung, as leaders, are capable of doing so. The price of thinness is high. According to leaks, the iPhone 17 Air will have a single rear camera instead of two or three, and will sacrifice one of its speakers. Samsung, for its part, has reduced its Galaxy S25 Edge to two cameras. These are important commitments in 2025, when mobile photography defines the high-end. Why now? The answer may be in the folding. Apple has been working on it for years your foldable iPhoneand Samsung already dominates that format, which on the other hand It is far from what the expectations were. six years ago, when the first ones arrived. A foldable phone needs to be as thin as possible when unfolded so as not to be excessively thick when folded. These new ultra-thin models may well be testing grounds for technologies that will end up in future foldables. He Oppo Find N5 points right in that direction: an ultra-thin foldable. There is also a differentiation factor. After years of incremental iterations, both Apple and Samsung need something to make their devices stand out. Extreme thinness, although it may seem like a step backwards, is visually striking. It’s the kind of feature that makes people stop in stores or pause their gaze when they spot a phone like that in someone else’s hand. And that’s something brands crave. But the success of these devices will depend on whether the compromises are worth it. The iPhone mini failed because it occupied a niche that no one had asked for. Or rather, that he did not ask for enough clients. Will it be different with ultrathin ones? Samsung seems to be starting with some caution, limiting the launch of the S25 Edge to select markets. The mobile industry moves in cycles. This wave of ultra-thin devices marks the beginning of another. But this time, the technology could be paving the way to something bigger: the next generation of foldables. Apple and Samsung are betting big. We’ll see if consumers sacrifice functionality for style. The war for the thinnest mobile phone has only just begun. In Xataka | The cameras of the Samsung Galaxy S25, S25+ and S25 Ultra, explained: their best asset is their inspiration in DSLRs Featured image | Xataka

Octopus tentacles have their own “brain.” We are now learning the implications

January 23, 2025 by usatoday24

Octopuses are invertebrate animals, but the absence of a central nervous system like that of birds or mammals does not make their brains less interesting than the rest. Brains, emphasizing the plural since neuronal systems of each of its extremities They have a degree of independence, which leads many to consider them as such. A nervous system not at all central. Now, a group of researchers has studied the nervous systems of these cephalopods to better understand how these nine neural organs operate together and to what extent they maintain their independence. What they observed is that each of these brains had the ability to operate individually. The team responsible for the new study believes that it is thanks to the unique segmentation of the nervous system of octopuses that these animals achieve the level of skill in the management of extremely flexible organs that serve these animals to move, feed, sense their environment, and even copulate. “If you are going to have a nervous system that is going to control such dynamic movement, that is a good way to organize it,” explained in a press release Clifton Ragsdale, co-author of the study. “We think it’s a feature that evolved specifically in soft-bodied cephalopods with suction cups to carry out these worm-like movements.” Studying segmentation. The new study focused on segmentation of this curious neuronal system, analyzing the distribution and function of the neurons of these tentacles, taking as reference an octopus of the species Octopus bimaculatus. Neurons that together add up to a greater number than the neurons located in the “central brain” of the animal, which is responsible for coordinating actions that require the use of various arms. These neurons in the extremities are concentrated, explains the teaminto an axial nerve cord (ANC), which “snakes” the tentacle connected to each of the animal’s suction cups. Neural columns. The ANC analysis showed that neurons in the octopus’s limbs were grouped into “columns” that in turn formed segments that the team compared to corrugated pipes. The segments were in turn separated by gaps called “septa” from which nerves and blood vessels made their way to the muscles of the limb. “From a modeling perspective, the best way to organize a control system for this long and flexible arm would be to divide it into segments,” Cassady Olson added.co-author of the study. “There must be some kind of communication between the segments, which you can imagine attenuates their movements.” Job details can be found in an article published in the magazine Nature Communications. Much to investigate. The tentacles of octopuses are very versatile limbs that allow this animal to navigate the seabed, but also, through their suction cups, they allow these octopods to perceive the world around them, hunt and feed on their prey. Knowing the details of the functioning of such complex limbs will still require new research. In Xataka | Octopuses are not aliens, and scientists have had to come out to explain why Image | Theasereje, CC BY-SA 4.0

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