Life
Vipers evolved either nose or eye horns depending on their habitat
The horns on vipers’ eyes could help camouflage their head in rocky areas or trees, while those with nose horns may blend in better on forest floors
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Life
Grumpy and aggressive shelter cats become more friendly over time
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Life
Barn owls make mental maps of their surroundings while they are flying
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Life
Female seahorses forget their pregnant male partners if separated
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Life
Haunting lemur songs have a rhythm similar to human music
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Life
Wolf cubs raised by humans become attached to us like puppies
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Life
Penguins have rare ability to recognise each other’s faces and voices
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Environment
Toxic oak moth threatens UK trees after failure to control its spread
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Life
Gifted dogs can learn 12 words in a week and remember them for months
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Life
Female cleaner fish can judge when to cheat without getting caught
Female cleaner fish deceive their male partners when the pair are cleaning a client fish, but only if the male is out of sight, suggesting the females have theory of mind
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Life
57 per cent of elephants at Thai tourist facilities have nervous tics
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Life
Hyenas make faces at each other when they want to play-fight
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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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