The lifespan of mammals is about 1 and a half billion heartbeats.
127
When a giraffe's baby is born it falls from a height of six feet, normally without being hurt.
126
Goldfish remember better in cold water than warm water.
29
Honeybees have a type of hair on their eyes!
22
In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
151
Only female mosquitoes bite and drink blood.
28
In the last 4,000 years, no new animals have been domesticated.
25