Life
Hyenas make faces at each other when they want to play-fight
Hyenas play-fight with other members of their clan, and they have a clear way to let each other know the fight isn’t serious: they open their mouths and bob their heads
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Life
Cats refuse to snuggle with objects that smell like their owners
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Life
Ancient spiders locked in amber died looking after their offspring
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Humans
Piles of animal dung reveal the location of an ancient Arabian oasis
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Environment
Male rodents with less time to breed grow bigger testes
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Environment
Cows have been potty-trained to reduce greenhouse gas emissions
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Life
Sea fireflies adapted their threatening glow to attract mates
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Life
Listen to an Australian duck say ‘you bloody fool’ like a human
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Life
Male bigfin reef squid may be the best fathers of all cephalopods
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Life
Wild cockatoos make utensils out of tree branches to open fruit pits
In Indonesia, Goffin’s cockatoos have been seen whittling tools such as wedges and scoops that help them break into the pits of sea mangoes
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Life
Female octopuses throw things at males that are harassing them
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Life
Bat pups babble like human babies do in order to practice vocalising
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Life
Rattlesnakes use auditory illusion to make us think they are nearby
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Life
Male chimps with more friends are more likely to have offspring
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