A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
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Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
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