The lifespan of mammals is about 1 and a half billion heartbeats.
127
A baby octopus is about the size of a flea at birth.
40
Kittens are born both blind and deaf.
25
There are more insects in one square mile of rural land than there are human beings in the world.
55
Whales and dolphins can't taste anything other than salt.
11
The venom of the king cobra is so deadly that just one gram of it can kill 150 people.
76
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492