Nicole Kidman is scared of butterflies.
65
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
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