Bats sleep 18-20 hours per day.
5
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
The oldest recorded elephant lived for 82 years.
213
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
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
When you shave a guinea pig it looks like a little hippo.
19