The Basenji dog is the only dog that is not able to bark.
4
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
Sloths take two weeks to digest their food.
243
Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19
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
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
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