There are approximately three chickens for every human on Earth.
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Cats recognise the voice of their owner, but never evolved to care.
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A scorpion can hold its breath for up to 6 days.
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Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Bats sleep 18-20 hours per day.
5