Denmark has twice as many pigs as there are people.
66
The cat brain weighs about 30g.
167
Cats sleep for 70% of their lives.
8
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
Only 3% of bird species have penises.
0