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Big cats in urban jungle: LA mountain lions, Mumbai leopards

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Los Angeles and Mumbai, India, are the world’s only megacities of 10 million-plus people where large felines — mountain lions in one, leopards in the other — thrive by breeding, hunting and maintaining territory within urban boundaries.

Long-term studies in both cities have examined how the big cats prowl through their urban jungles, and how people can best live alongside them — lessons that may be applicable to more places in coming decades, AP reported.

“In the future, there’s going to be more cities like this, as urban areas further encroach on natural habitats,” said biologist Audra Huffmeyer, who studies mountain lions at the University of California, Los Angeles. “If we want to keep these large carnivores around on the planet, we have to learn to live with them.”

Twenty years ago, scientists in Los Angeles placed a tracking collar on their first cat, a large male mountain lion dubbed P1, that defended a wide swath of the Santa Monica Mountains, a coastal range that lies within and adjacent to the city.

“P1 was as big as they get in southern California, about 150 pounds,” said Seth Riley, a National Park Service ecologist who was part of the effort. “These dominant males are the ones that breed — they won’t tolerate other adult males in their territory.”

With GPS tracking and camera traps, the scientists followed the rise and fall of P1’s dynasty for seven years, through multiple mates and litters of kittens. “2009 was the last time we knew anything about P1,” said Riley. “There must have been a fight. We found his collar, blood on a rock. And never saw him again. He was reasonably old.”

Since then, Riley has helped collar around 100 more mountain lions in Los Angeles, building a vast database of lion behavior that’s contributed to understanding how much territory the cats need, what they eat (mostly deer), how often they cross paths with people and what may imperil their future, AP reported.

In Mumbai, one of the world’s most densely populated cities, the leopards are packed in, too: about 50 have adapted to a space ideally suited for 20. And yet the nocturnal cats also keep mostly out of sight.

“Because these animals are so secretive, you don’t know much about them. You can’t just observe them,” said Vidya Athreya, director of Wildlife Conservation Society in India and part of a research team that recently fitted five leopards with tracking collars.

The leopards’ core range is centered around Sanjay Gandhi National Park, a protected area boxed on three sides by an urbanized landscape, including a neighborhood that’s home to 100,000 people and nearly a dozen leopards, AP reported.

Researchers tackled specific questions from park managers, such as how the cats cross busy roads near the park.

To get the answer, they collared a big male dubbed Maharaja. They found that it walked mostly at night and traversed over 60 kilometers in about a week, from the park in Mumbai to another nearby. The leopard crossed a busy state highway, using the same spot to pass, on three occasions. It also crossed a railway track.

The path chosen by Maharaja is nearby a new highway and a freight corridor under construction. Researchers said that knowing the big cats’ highway crossing habits can help policy makers make informed decisions about where to build animal underpasses to reduce accidents.

But learning to live alongside cats is not only a matter of infrastructure decisions, but also human choices and education, AP reported.

In Mumbai, Purvi Lote saw her first leopard when she was 5, on the porch of a relative’s home. Terrified, she ran back inside to her mother. But now the 9-year-old says she isn’t as afraid of the big cats.

Like other children, she doesn’t step outdoors alone after dark. Children and even adults travel in groups at night, while blaring music from their telephones to ensure that leopards aren’t surprised. But the most fundamental rule, according to the youngster: “When you see a leopard, don’t bother it.”

Leopards in Mumbai adapted to mainly hunt feral dogs that frequent garbage dumps outside the forest and mostly attacked people when cornered or attacked. But in 2010, 20 people in Mumbai died in leopard attacks, said Jagannath Kamble, an official at Mumbai’s protected forest.

Officials roped in volunteers, nongovernmental groups and the media for a public education program in 2011. Since then, fatalities have dropped steadily and no one has been killed in an attack since 2017, AP reported.

In Los Angeles, there have been no human deaths attributed to mountain lions, but one nonfatal attack on a child occurred in 2021.

Both cities have learned that trying to capture, kill or relocate the cats isn’t the answer, AP reported.

“Relocation and killing makes conflict worse,” said Beth Pratt, California regional director at National Wildlife Federation. “It’s better to have a stable population, than one where hierarchies and territories are disrupted.”

Avoidance is the safest strategy, she said. “These big cats are shy — they tend to avoid human contact as much as they can. They’re really extreme introverts of the animal kingdom.”

Science & Technology

Australia social media ban set to take effect, sparking a global crackdown

For the social media businesses, the implementation marks a new era of structural stagnation as user numbers flatline and time spent on platforms shrinks, studies show.

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Australia is set to become the first country to implement a minimum age for social media use on Wednesday, with platforms like Instagram, TikTok and YouTube forced to block more than a million accounts, marking the beginning of an expected global wave of regulation.

From midnight, 10 of the biggest platforms will be required to block Australians aged under 16 or be fined up to A$49.5 million ($33 million), Reuters reported.

The law received harsh criticism from major technology companies and free speech advocates, but was praised by parents and child advocates.

The rollout closes out a year of speculation about whether a country can block children from using technology that is built into modern life. And it begins a live experiment that will be studied globally by lawmakers who want to intervene directly because they are frustrated by what they say is a tech industry that has been too slow to implement effective harm-minimisation efforts.

Governments from Denmark to Malaysia – and even some states in the U.S., where platforms are rolling back trust and safety features – say they plan similar steps, four years after a leak of internal Meta (META.O) documents showed the company knew its products contributed to body image problems and suicidal thoughts among teenagers while publicly denying the link existed.

“While Australia is the first to adopt such restrictions, it is unlikely to be the last,” said Tama Leaver, a professor of internet studies at Curtin University.

“Governments around the world are watching how the power of Big Tech was successfully taken on. The social media ban in Australia … is very much the canary in the coal mine.”

A spokesperson for the British government, which in July began forcing websites hosting pornographic content to block under-18 users, said it was “closely monitoring Australia’s approach to age restrictions.”

“When it comes to children’s safety, nothing is off the table,” they added.

Few will scrutinise the impact as closely as the Australians. The eSafety Commissioner, an Australian regulator tasked with enforcing the ban, hired Stanford University and 11 academics to analyse data on thousands of young Australians covered by the ban for at least two years.

Though the ban covers 10 platforms initially, including Alphabet’s (GOOGL.O), YouTube, Meta’s Instagram and TikTok, the government has said the list will change as new products appear and young users switch to alternatives.

Of the initial 10, all but Elon Musk’s X have said they will comply using age inference – guessing a person’s age from their online activity – or age estimation, which is usually based on a selfie. They might also check with uploaded identification documents or linked bank account details.

Musk has said the ban “seems like a backdoor way to control access to the internet by all Australians” and most platforms have complained that it violates people’s right to free speech.

For the social media businesses, the implementation marks a new era of structural stagnation as user numbers flatline and time spent on platforms shrinks, studies show.

Platforms say they don’t make much money showing advertisements to under-16s, but they add that the ban interrupts a pipeline of future users. Just before the ban took effect, 86% of Australians aged 8 to 15 used social media, the government said.

“The days of social media being seen as a platform for unbridled self-expression, I think, are coming to an end,” said Terry Flew, the co-director of University of Sydney’s Centre for AI, Trust and Governance.

Platforms responded to negative headlines and regulatory threats with measures like a minimum age of 13 and extra privacy features for teenagers, but “if that had been the structure of social media in the boom period, I don’t think we’d be having this debate,” he added.

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Ethiopian volcano erupts for first time in nearly 12,000 years

Ash from the eruption drifted across the region, spreading over Yemen, Oman, India, and parts of Pakistan.

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The Hayli Gubbi volcano in Ethiopia’s Afar region has erupted for the first time in almost 12,000 years, sending massive ash plumes soaring up to 14 kilometres into the atmosphere, according to the Toulouse Volcanic Ash Advisory Centre.

The eruption began on Sunday and lasted several hours. Hayli Gubbi, located around 800 kilometres northeast of Addis Ababa near the Eritrean border, sits within the geologically active Rift Valley, where two major tectonic plates meet. The volcano rises roughly 500 metres above the surrounding landscape.

Ash from the eruption drifted across the region, spreading over Yemen, Oman, India, and parts of Pakistan. Satellite imagery and social-media videos captured a towering column of white smoke billowing into the sky.

The Smithsonian Institution’s Global Volcanism Program notes that Hayli Gubbi has no recorded eruptions during the Holocene, the period dating back about 12,000 years to the end of the last Ice Age.

Volcanologist Simon Carn of Michigan Technological University also confirmed on Bluesky that the volcano had “no record of Holocene eruptions.”

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Cloudflare outage easing after millions of internet users affected

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A global outage at web-infrastructure firm Cloudflare began to ease on Tuesday afternoon after preventing people from accessing major internet platforms, including X and ChatGPT.

Cloudflare, whose network handles around a fifth of web traffic, said it started to investigate the internal service degradation around 6:40 a.m. ET. It has deployed a fix but some customers might still be impacted as it recovers service.

The incident marked the latest hit to major online services. An outage of Amazon’s cloud service last month caused global turmoil as thousands of popular websites and apps, including Snapchat, were inaccessible due to the disruption.

Cloudflare – whose shares were down about 5% in premarket trading – runs one of the world’s largest networks that helps websites and apps load faster and stay online by protecting them from traffic surges and cyberattacks.

The latest outage prevented users from accessing platforms such as Canva, X, and ChatGPT, prompting users to log outage reports with Downdetector.

Downdetector tracks outages by collating status reports from a number of sources. “We saw a spike in unusual traffic to one of Cloudflare’s services beginning at 11:20 UTC. That caused some traffic passing through Cloudflare’s network to experience errors,” the company said in an emailed statement.

“We are all hands on deck to make sure all traffic is served without errors.”

X and ChatGPT-creator OpenAI did not immediately respond to requests for comment. – REUTERS

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