The lifespan of mammals is about 1 and a half billion heartbeats.
127
There are no penguins in the North Pole.
56
Only female bees work.
20
The male platypus has poisonous spurs on its legs.
58
In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
151
A cat can jump FIVE TIMES as high as it is tall!
371
The venom of a small scorpion is much more toxic than the venom of a large scorpion.
60