The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Gorillas can catch human colds and other illnesses.
205
A scorpion can hold its breath for up to 6 days.
19
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6