The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
Gorillas can catch human colds and other illnesses.
205
There's a rare breed of pig that looks like a sheep.
14
The seahorse is the only fish to have a neck.
12
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Cats recognise the voice of their owner, but never evolved to care.
22