The octopus does not have a blind spot.
273
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
The cat brain weighs about 30g.
167
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