Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Dogs have been man's pet for over 14,000 years.
224
Gorillas can catch human colds and other illnesses.
205
Cats sleep for 70% of their lives.
8