Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
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When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
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Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
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The cat brain weighs about 30g.
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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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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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