Dogs sometimes fake being sick to get attention.
26
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
The largest earthworm on record was found in South Africa and measured 22 feet.
151
In Australia, there are spiders big enough to eat snakes.
20
The reindeer is the only mammal that can see UV light.
17