Jumping fleas can accelerate 50 times faster than the space shuttle.
218
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
Cows can sleep standing up, but they can only dream lying down.
745
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
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
Mosquitoes don't just bite you, they also pee on you.
11