Month: January 2025

Peeing is contagious among chimps

Physical proximity, social dominance are primary factors involved in “contagious urination” behavior.

When ya gotta go, ya gotta go, and if it sometimes seems like the urge to pee seems more pressing when others nearby are letting loose—well, there's now a bit of science to back that up. It turns out that humans may not be the only species to experience "contagious urination," according to a new paper published in the journal Current Biology. Chimpanzees living at the Kumamoto Sanctuary in Japan are also more likely to relieve themselves when others are doing so nearby, and the behavior seems to be hierarchical, "flowing down" from dominant chimps to more passive ones.

“In humans, urinating together can be seen as a social phenomenon,” said coauthor Ena Onishi of Kyoto University. “An Italian proverb states, ‘Whoever doesn’t pee in company is either a thief or a spy’ (Chi non piscia in compagnia o è un ladro o è una spia), while in Japanese, the act of urinating with others is referred to as 'Tsureshon' (連れション). This behavior is represented in art across centuries and cultures and continues to appear in modern social contexts. Our research suggests that this phenomenon may have deep evolutionary roots.”

Onishi, et al decided to study the phenomenon after noticing that many chimps in the sanctuary seemed to synchronize when they peed, and they wondered whether the phenomenon might be similar to how one person yawning can trigger others to follow suit—another "semi-voluntary physiological behavior." There had been no prior research into contagious peeing. So they filmed the 20 captive chimps over 600 hours, documenting over 1,300 "urination events."

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Life is thriving in the subsurface depths of Earth

Different species thrive beneath the oceans than under the land.

From the flamboyant blossoms and birds of rainforests to the living rainbows of coral reefs, Earth’s surface is teeming with life. But some of its most diverse and fascinating biomes are thriving in the darkness below.

We used to think that the subsurface was a far-from-ideal place for living things. Habitats that can soak up light and warmth from the Sun have the energy to sustain many forms of life and so were viewed as the most diverse. That view is now changing.

Led by Emil Ruff of the Marine Biological Laboratory (MBL), Woods Hole, Mass., new research has unearthed communities of underground microbes that are almost as—and sometimes more—diverse than even reefs and rainforests. Ruff and his team found that subsurface bacteria and archaea are flourishing, even at depths where the energy supply is orders of magnitude lower than enjoyed by organisms in habitats that see the sun.

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After chaotic weekend, TikTok remains in limbo

Users are in, new downloads are paused, and Trump’s order will face scrutiny.

TikTok disappeared for a portion of the weekend, following a Supreme Court decision that upheld a 2024 federal law requiring the app to cease operations in the US unless it was sold by its Chinese owner, ByteDance. TikTok is gradually resuming service in the US, but it has an unclear road ahead.

TikTok started greeting US users late Saturday night with a notice stating that "Sorry, TikTok isn't available right now," noting that "A law banning TikTok has been enacted in the US."

The message changed after it was first deployed, adding a note that "We are fortunate that President Trump has indicated that he will work with us on a solution to reinstate TikTok once he takes office. Please stay tuned!"

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Anthony Fauci granted preemptive pardon in the last hours of Biden’s term

Fauci has not been charged with a crime but has been vilified and threatened.

With just hours left in office, President Joe Biden has issued a preemptive pardon for Anthony Fauci, America's top infectious disease expert.

For nearly four decades, Fauci directed the National Institute of Allergy and Infectious Diseases. He advised seven presidents, beginning with Ronald Reagan and, among his many accomplishments, played a crucial role in the response to the HIV/AIDS epidemic. Fauci was a leading architect of PEPFAR, the global AIDS response program begun by President George W. Bush that is estimated to have saved 25 million lives. Fauci served as Biden's medical advisor until his retirement at the end of 2022.

"For more than half a century, Dr. Fauci served our country," Biden said in a statement released this morning. "He saved countless lives by managing the government’s response to pressing health crises, including HIV/AIDS, as well as the Ebola and Zika viruses. During his tenure as my Chief Medical Advisor, he helped the country tackle a once-in-a-century pandemic. The United States is safer and healthier because of him."

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