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.
13
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
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In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23