The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
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There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
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