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Ilya Bobrovskiy

Ancient sponges or just algae? New research overturns chemical evidence for the earliest animals

Ancient fatty molecules, once believed to be traces of some of the first animals to live on Earth, may have been produced by algae instead.
Kenny Webster/Unsplash

10 things we do that puzzle and scare horses

Patting, shoeing, grooming, feeding, and even putting them in a stable - the list of seemingly benign human interactions that can confuse or upset horses is surprisingly long. On the eve of the official Horse’s Birthday, we explain why.
Many breeders say they’re stewards of conservation, but no captive tiger has ever been released into the wild. AP Photo/Kevork Djansezian

‘Tiger King’ and America’s captive tiger problem

There are more captive tigers in the US than there are in the wild around the world – and they can be bought for less than some breeds of dog puppies.

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