Only female mosquitoes bite and drink blood.
28
The giant squid has the largest eyes in the world.
62
A duck's quack doesn't echo, and no one knows why.
173
Penguins have a gland above their eye that turns saltwater into freshwater.
12
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Some ribbon worms will eat themselves if they cant find any food!
37
Service dogs are trained to know when they are on duty. When their harness is on, they know they are at work. When you take it off they instantly become playful and energetic.
11