To find out if a watermelon is ripe, knock it, and if it sounds hollow then it is ripe.
84
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
When you correct for weight differences, men are proportionately stronger than horses.
64
Alligators can live up to 100 years.
337
Service dogs are trained to know when they are on duty. When their harness is on, they know they are at work. When you take it off they instantly become playful and energetic.
11
A crocodile always grows new teeth to replace the old teeth!
15
There is a species of clam that can grow up to four feet long and weigh up to 500 pounds.
89