The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
In Australia, there are spiders big enough to eat snakes.
20
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
The elephant brain weighs about 6,000g.
274
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