The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
The Platypus used to be considered a myth like Bigfoot and the Yeti.
18
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
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
A scorpion can hold its breath for up to 6 days.
19
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9