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 oldest recorded elephant lived for 82 years.
213
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Giant Anteaters' front legs look like a panda.
48
Mosquitoes don't just bite you, they also pee on you.
11
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11