Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
The reindeer is the only mammal that can see UV light.
17
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
Denmark has twice as many pigs as there are people.
66
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
In 1949, an official boxing match between a bear and a man was held. The bear won.
41