Life
Black squirrels may be evolving due to roadkill in cities
Grey squirrels can actually come in black morphs, which are doing well in one US city because they're less likely to become roadkill
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Big animals have higher cancer risk 鈥� but also evolved better defences
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Dogs seem to have a strong preference for yellow things
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The bold plan to bring back Tasmanian devils across mainland Australia
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Mice seen giving ‘first aid’ to unconscious companions
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Watch a cuttlefish transform into a leaf and a coral to hunt its prey
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Surprising fossils suggest early animals survived outside of water
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Giant megalodon sharks may have sparred with their jaws
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How a moth uses an optical illusion to disguise itself as a leaf
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Quail-sized feathered dinosaur may be the earliest known bird
Archaeopteryx, long considered the earliest fossil bird, could be knocked off its perch by Baminornis zhenghensis, which lived around 150 million years ago and had a short tail like those of modern birds
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Humpback whale songs have patterns that resemble human language
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London Underground mutant mosquitoes have surprisingly ancient origins
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Amazing plesiosaur fossil preserves its skin and scales
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Cuddling koalas show unexpected sociable side in surprising video
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