There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
Cats recognise the voice of their owner, but never evolved to care.
22
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
Sharks, like other fish, have their reproductive organs in their chests.
248