The reindeer is the only mammal that can see UV light.
17
Elephants are terrified of Bees and actually have a special, distinct vocalization for “Run away the Bees are angry”
49
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Sharks, like other fish, have their reproductive organs in their chests.
248
Squirrels forget where they hide about half of their nuts.
698
When cats are happy, they may squeeze their eyes shut.
10
Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11