An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Condoms were originally made of animal intestines or linen.
347
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