The elephant brain weighs about 6,000g.
274
Giant Anteaters' front legs look like a panda.
48
The Basenji dog is the only dog that is not able to bark.
4
The largest earthworm on record was found in South Africa and measured 22 feet.
151
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19