Alligators can live up to 100 years.
337
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
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Sloths take two weeks to digest their food.
243
Cats recognise the voice of their owner, but never evolved to care.
22
A lion in the wild usually makes no more than twenty kills a year.
186