Lobsters have blue blood.
476
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
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Cats recognise the voice of their owner, but never evolved to care.
22
Giant Anteaters' front legs look like a panda.
48