Jellyfish as a species are actually older than dinosaurs and sharks.
383
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
The station master and operating officer at the Kishi Station, Japan, is a cat!
18
When cats are happy, they may squeeze their eyes shut.
10
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40