The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
The cat brain weighs about 30g.
167
Cats and dogs can hear ultrasound.
350