Tigers can see 6 times better at night than humans.
305
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Lobsters have blue blood.
476
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11