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It’s not just humans — chimpanzees also like to follow trends, study shows

Van Leeuwen also cited the example of a group of chimpanzees at a zoo in the Netherlands in which one female started walking as if she were carrying a baby even though she wasn’t.

Soon, all of the females had adopted this walking style, he said. In addition, when two new females were brought into the group, the one that adopted the style swiftly was integrated quickly, whereas the one that refused to walk in the group style took longer to be accepted.

For Van Leeuwen, these behaviors are about fitting in and smoothing social relationships, just as with humans.

Tunable laser light: Ring design could be used in telecom, medicine and more

Researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and Technical University of Vienna (TU Wien) have invented a new type of tunable semiconductor laser that combines the best attributes of today’s most advanced laser products, demonstrating smooth, reliable, wide-range wavelength tuning in a simple, chip-sized design.

Tunable lasers, or lasers whose light output wavelengths can be changed and controlled, are integral to many technologies, from high-speed telecommunications to medical diagnostics to safety inspections of gas pipelines.

Yet laser technology faces many trade-offs—for example, lasers that emit across a wide range of wavelengths, or colors, sacrifice the accuracy of each color. But lasers that can precisely tune to many colors get complicated and expensive because they commonly require moving parts.

Cutting-Edge Gene Therapy Restores Hearing Within Weeks

“This is a huge step forward in the genetic treatment of deafness, one that can be life-changing for children and adults,” says Maoli Duan, consultant and docent at the Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Sweden, and one of the study’s corresponding authors.

Gene therapy involved a synthetic adeno-associated virus (AAV) to deliver a functional version of the OTOF gene to the inner ear via a single injection through a membrane at the base of the cochlea called the round window. The injections were to target mutations in OTOF that can cause deficiencies of the otoferlin protein, that plays key roles in transmitting auditory signals.

According to the researchers, the effects of the gene therapy were rapid, and the majority of the participants recovered some hearing after one month. At a 6-month follow-up, all participants showed considerable improvements, with the average perceptible volume of sound improving from 106 decibels to 52 decibels.

Nanosheet material stores heat below 100°C using dual water adsorption modes

Efficiently capturing and storing excess heat, particularly below 200°C, is paramount to achieving a carbon-neutral society. Every year, factories and homes produce excess heat, much of which gets wasted. Likewise, as the world gets more reliant on renewable energy sources, the need to capture and store heat grows.

A collaboration between Tohoku University and the Japan Atomic Energy Agency has made significant strides in this regard, developing nanosheets of layered manganese dioxide (MnO2) that can store heat even below 100°C.

Details of the study were published in the journal Communications Chemistry.

Chrome, retire. Perplexity has released its own AI browser, OpenAI — is next in line

AI startups are increasingly encroaching on the territory of tech giants. Currently, Perplexity has launched its own AI browser Comet, and OpenAI is about to release its analog.

Developers who were creating chatbots yesterday are now building full-fledged browsers and openly challenging Google Chrome. This is happening against the backdrop of a rapid increase in the number of search queries via AI assistants — and at the same time drop in traffic to Google. The tech giant itself understands the situation: in recent months Chrome is actively acquiring AI features and the search engine is testing a new AI mode.

Comet is already available for subscribers Perplexity Max ($200/month) and a limited group of users on a waiting list. The browser has a built-in Perplexity AI search engine by default, which generates summaries instead of traditional links. In addition, Comet has a built-in Comet Assistant — an AI agent that automates routine tasks: reads mail, summarizes the calendar, manages tabs, and performs actions for the user on pages. You can call it at any time right on the website — it sees the content and reacts to it.