Rattlesnake mating sessions have been known to last more than 22 hours.
232
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
Whales and dolphins can't taste anything other than salt.
11
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Gorillas can catch human colds and other illnesses.
205
Condoms were originally made of animal intestines or linen.
347