After footage of a starving polar bear on land went viral, NPR's Scott Simon asked Polar Bears International chief scientist Steven Amstrup how the animals can survive if sea ice continues to melt.
Researchers witnessed adolescent female Japanese macaques mounting sika deer in ways that were "sexual in nature." They have several theories for why, but say more research is necessary.
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It's the latest Obama-era agriculture regulation to go on the chopping block. This one governs the treatment of animals on organic farms. But most organic farmers actually support the rule.
Penitent penguins. A seal aghast. A turbocharged wigeon, a vain gnu and a kickboxing kangaroo. We have the photos.
Although humans are blamed for the extinction of the dog-like Australian marsupial some 80 years ago, researchers say its problems may have started more than 70,000 years ago.
The tick was with a feather from a dinosaur that lived in the Cretaceous Period. Modern ticks love to bite mammals, and scientists have long wondered what the tiny vampires ate millions of years ago.
Scientists have uncovered the fossil of an ancestral penguin off the east coast of New Zealand. It was one of the earliest known species of penguin and also one of the largest.
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Industry trailblazers are trying to lessen the energy and resource costs of aquaculture. Possible solutions include using brewery waste, algae, insects or even carbon dioxide to feed the fish we eat.
Herders have let their livestock roam freely. Farmers are furious over damage to their crops. Tensions have led to thousands of deaths. Will a government ban on grazing end the violence?