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Animals

San Francisco Mayor London Breed (left) and Wu Minglu, secretary general of the China Wildlife Conservation Association, hold up an agreement to lease giant pandas for the San Francisco Zoological Society and Gardens during a signing ceremony in Beijing on Friday. Liu Zheng/AP hide caption

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Liu Zheng/AP

An artistic rendering of a washed-up Ichthyotitan severnensis carcass on the beach. Sergey Krasovskiy hide caption

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Sergey Krasovskiy

A screenshot of a video from the website Storyful shows an elephant walking through Butte, Mont., after escaping from a nearby circus on Tuesday. Storyful/Screenshot by NPR hide caption

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Storyful/Screenshot by NPR

University of Miami Marine Sciences student Lauren Hayes with her catch, a 7 or 8 pound mutton snapper, which was released and returned to its reef habitat more than 100 feet below the surface. Greg Allen/NPR hide caption

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Greg Allen/NPR

After catch and release, here's how to make sure reef fish survive

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Selkirkia tsering fossil found in a collection from the Fezouata Formation in Morocco. Javier Ortega Hernández/Harvard Museum of Comparative Zoology hide caption

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Javier Ortega Hernández/Harvard Museum of Comparative Zoology

A two-spot octopus, like the type an Oklahoma family brought home as a pet. Angelina Komatovich hide caption

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Angelina Komatovich

Terrance the octopus came to live with a family. Then she laid dozens of eggs

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Lily Padula for NPR

In the womb, a brother's hormones can shape a sister's future

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A dog tries on eclipse sunglasses in London in 2015. Experts say pets don't need eclipse sunglasses — in fact, quite the opposite. Kirsty Wigglesworth/AP hide caption

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Kirsty Wigglesworth/AP

The black-capped chickadee, seen here, is well known for its strong episodic memory. Dmitriy Aronov hide caption

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Dmitriy Aronov

The "barcodes" powering these tiny songbirds' memories may also help human memory

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A mother humpback whale and calf are seen on the coast of Vitoria, Espirito Santo state, Brazil on August 22, 2023. Carl de Souza/AFP via Getty Images hide caption

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Carl de Souza/AFP via Getty Images

Indigenous leaders want to protect whales by granting them legal personhood

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This combination of 2003 and 2006 photos shows a northern spotted owl, left, in the Deschutes National Forest near Camp Sherman, Ore., and a barred owl in East Burke, Vt. Don Ryan Steve Legge/AP hide caption

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Don Ryan Steve Legge/AP

Dairy cattle feed at a farm on March 31, 2017, near Vado, N.M. The U.S. Department of Agriculture says cows in multiple states have tested positive for bird flu. Rodrigo Abd/AP hide caption

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Rodrigo Abd/AP

A person in Texas caught bird flu after exposure to cows that were thought to be ill

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You can ding-dong-ditch to save these fish

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A researcher holds up a sandy De Winton's golden mole. Nicky Souness/Endangered Wildlife Trust hide caption

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Nicky Souness/Endangered Wildlife Trust

This February 2021 photo released by the California Department of Fish and Wildlife shows a protected gray wolf near Yosemite, Calif. California Department of Fish and Wildlife via AP hide caption

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California Department of Fish and Wildlife via AP

French bulldogs have skyrocketed in popularity. Legislation being considered in New Hampshire could put rules on breeding ones with chronic breathing problems. Sarah Stier/Getty Images for Westminster Kennel Club hide caption

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Sarah Stier/Getty Images for Westminster Kennel Club

Bulldogs are prone to health problems. New Hampshire could limit their breeding

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A post-reproductive toothed whale mother and her son. David Ellifrit/Center for Whale Research hide caption

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David Ellifrit/Center for Whale Research

Most animals don't go through menopause. So why do these whales?

Across the animal kingdom, menopause is something of an evolutionary blip. We humans are one of the few animals to experience it. But Sam Ellis, a researcher in animal behavior, argues that this isn't so surprising. "The best way to propagate your genes is to get as many offspring as possible into the next generation," says Ellis. "The best way to do that is almost always to reproduce your whole life."

Most animals don't go through menopause. So why do these whales?

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The French bulldog is America's most popular breed, according to the American Kennel Club. This one, Manny The Frenchie, attended Time Inc.'s 2017 PetHero Pet Party to benefit animals impacted by hurricanes. Astrid Stawiarz/Getty Images for PetHero hide caption

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Astrid Stawiarz/Getty Images for PetHero