In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Large kangaroos can cover more than 30 feet with each jump!
19
A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52
All the swans in England are property of the Queen.
36
The world's smallest mammal is the bumblebee bat of Thailand, weighing less than a penny.
60
A group of kangaroos is called a mob.
28
Crocodiles swallow stones to help them dive deeper.
55