The average cat sleeps about 2/3 of the day.
203
A rat can go without water longer than a camel can.
26
One litter of kittens can be produced by more than one father.
57
There are some species of snails that are extremely venomous.
72
The heart of a mouse beats 650 times per minute!
53
Crocodile babies don't have sex chromosomes; the temperature at which the egg develops determines gender.
45
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492