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
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
When cats are happy, they may squeeze their eyes shut.
10
Cats and dogs can hear ultrasound.
350
The Basenji dog is the only dog that is not able to bark.
4
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
-12
Sharks, like other fish, have their reproductive organs in their chests.
248