One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Rattlesnake mating sessions have been known to last more than 22 hours.
232
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 Australia, there are spiders big enough to eat snakes.
20
The reindeer is the only mammal that can see UV light.
17
The seahorse is the only fish to have a neck.
12
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8