A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Lobsters have blue blood.
476
Tigers can see 6 times better at night than humans.
305
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
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Ants tend to survive in a microwave because they find the coolest spot and wait!
17
Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
47
A cat can jump FIVE TIMES as high as it is tall!
371