Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
In Australia, there are spiders big enough to eat snakes.
20
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
The octopus does not have a blind spot.
273
Cats and dogs can hear ultrasound.
350
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402