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mercredi 22 octobre 2025

Even with protections, wolves still fear humans

Even with protections, wolves still fear humans

In May 2025, the European Parliament changed the status of wolves in the EU from “strictly protected” to “protected,” which opened the way for its member states to allow hunting under certain conditions, such as protecting livestock. One of the arguments behind this change was that the “tolerance of modern society towards wolves” led to the emergence of “fearless wolves” that are no longer afraid of people.

“Regulators made it clear, though, that there is no scientific evidence to back this up,” says Michael Clinchy, a zoologist at Western University in London, Canada. “So we did the first-of-its-kind study to find out if wolves have really lost their fear of humans. We proved there is no such thing as a fearless wolf.”

Red riding hood

The big bad wolf trope is found in plenty of our myths and fables, with Little Red Riding Hood being probably the most famous example. This mythical fear of wolves, combined with real damage to livestock, led to extensive hunting. By the mid-20th century, we’d pushed wolves to the verge of extinction in Western and Central Europe. Human-wolf encounters became very rare, and the big bad wolf myth faded away. But starting in the 1970s, wolves became a protected species across Europe and North America, which caused wolf populations to bounce back and reoccupy some of their old habitats.

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Big Tech may fall short of green energy targets due to proposed rule changes

Big Tech may fall short of green energy targets due to proposed rule changes

The world’s leading authority on carbon accounting has proposed stricter disclosure rules that are set to make it more challenging for large power users such as Amazon and Meta to hit their climate targets.

The EU, California, and the International Financial Reporting Standards all draw on the voluntary Greenhouse Gas Protocol oversight body in their guidelines on how companies should disclose their carbon footprints.

This week, the Protocol proposed the first update in a decade to how it measures power-sector emissions, in a move that would upend the way many tech, industrial, and utilities groups account for clean energy investments.

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It wasn’t space debris that struck a United Airlines plane—it was a weather balloon

It wasn’t space debris that struck a United Airlines plane—it was a weather balloon

The mysterious impact of a United Airlines aircraft in flight last week has sparked plenty of theories as to its cause, from space debris to high-flying birds.

However the question of what happened to flight 1093, and its severely damaged front window, appears to be answered in the form of a weather balloon.

“I think this was a WindBorne balloon,” Kai Marshland, co-founder of the weather prediction company WindBorne Systems, told Ars in an email on Monday evening. “We learned about UA1093 and the potential that it was related to one of our balloons at 11 pm PT on Sunday and immediately looked into it. At 6 am PT, we sent our preliminary investigation to both NTSB and FAA, and are working with both of them to investigate further.”

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NSO permanently barred from targeting WhatsApp users with Pegasus spyware

NSO permanently barred from targeting WhatsApp users with Pegasus spyware

A federal judge has ordered spyware maker NSO to stop using its Pegasus app to target or infect users of WhatsApp.

The ruling, issued Friday by Phyllis J. Hamilton of the US District Court of the District of Northern California, grants a permanent injunction sought by WhatsApp owner Meta in a case it brought against NSO in 2019. The lawsuit alleged that Meta caught NSO trying to surreptitiously infect about 1,400 mobile phones—many belonging to attorneys, journalists, human-rights activists, political dissidents, diplomats, and senior foreign government officials—with Pegasus. As part of the campaign, NSO created fake WhatsApp accounts and targeted Meta infrastructure. The suit sought monetary awards and an injunction against the practice.

Setting a precedent

Friday’s ruling ordered NSO to permanently cease targeting WhatsApp users, attempting to infect their devices, or intercepting WhatsApp messages, which are end-to-end encrypted using the open source Signal Protocol. Hamilton also ruled that NSO must delete any data it obtained when targeting the WhatsApp users.

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Why did NASA’s chief just shake up the agency’s plans to land on the Moon?

Why did NASA’s chief just shake up the agency’s plans to land on the Moon?

NASA acting Administrator Sean Duffy made two television appearances on Monday morning in which he shook up the space agency’s plans to return humans to the Moon.

Speaking on Fox News, where the secretary of transportation frequently appears in his acting role as NASA chief, Duffy said SpaceX has fallen behind in its efforts to develop the Starship vehicle as a lunar lander. Duffy also indirectly acknowledged that NASA’s projected target of a 2027 crewed lunar landing is no longer achievable. Accordingly, he said he intended to expand the competition to develop a lander capable of carrying humans down to the Moon from lunar orbit and back.

“They’re behind schedule, and so the President wants to make sure we beat the Chinese,” Duffy said of SpaceX. “He wants to get there in his term. So I’m in the process of opening that contract up. I think we’ll see companies like Blue [Origin] get involved, and maybe others. We’re going to have a space race in regard to American companies competing to see who can actually lead us back to the Moon first.”

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mardi 21 octobre 2025

Claude Code gets a web version—but it’s the new sandboxing that really matters

Claude Code gets a web version—but it’s the new sandboxing that really matters

Anthropic has added web and mobile interfaces for Claude Code, its immensely popular command-line interface (CLI) agentic AI coding tool.

The web interface appears to be well-baked at launch, but the mobile version is limited to iOS and is in an earlier stage of development.

The web version of Claude Code can be given access to a GitHub repository. Once that’s done, developers can give it general marching orders like “add real-time inventory tracking to the dashboard.” As with the CLI version, it gets to work, with updates along the way approximating where it’s at and what it’s doing. The web interface supports the recently implemented Claude Code capability to take suggestions or requested changes while it’s in the middle of working on a task. (Previously, if you saw it doing something wrong or missing something, you often had to cancel and start over.)

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Do animals fall for optical illusions? It’s complicated.

Do animals fall for optical illusions? It’s complicated.

Chances are you’ve encountered some version of the “Ebbinghaus illusion,” in which a central circle appears to be smaller when encircled by larger circles and seems larger when surrounded by smaller circles. It’s an example of context-dependent size perception. But is this unique to humans or are some animals susceptible as well? According to a new paper published in the journal Frontiers in Psychology, it might depend on the specific sensory environment, since the illusion relies on contextual clues to be effective.

Prior research has produced mixed results on the question of animals and their susceptibility to optical illusions, per the authors. Dolphins, chicks, and redtail splitfins seem to be susceptible, for example, while pigeons, baboons, and gray bamboo snakes are not.

Perhaps the best-known example is cats’ undeniable love of boxes and squares—the “if it fits, I sits” phenomenon documented all over the Internet. This behavior is generally attributed to the fact that cats feel safer when squeezed into small spaces, but it also tells us something about feline visual perception. A 1988 study and a 2021 study concluded that cats are susceptible to the Kanizsa square illusion, suggesting that they perceive subjective contours much like humans.

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