The lifespan of mammals is about 1 and a half billion heartbeats.
127
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
A tuna fish can swim 100 miles in a single day!
29
At one 'feeding', a mosquito can absorb one and a half times its own weight in blood.
-1
A dragonfly has a lifespan of 24 hours.
24
A new born kangaroo is small enough to fit in a spoon!
7
The venom of a small scorpion is much more toxic than the venom of a large scorpion.
60
Cats cannot taste sweet things.
22