Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
The largest breed of rabbit is the Flemish Giant.
65
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Female kangaroos have three vaginas.
2
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Cats and dogs can hear ultrasound.
350
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12