A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
When dragonflies mate, their tails form a love heart.
22
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
Squirrels forget where they hide about half of their nuts.
698
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
The oldest recorded elephant lived for 82 years.
213