Condoms were originally made of animal intestines or linen.
347
A scorpion can hold its breath for up to 6 days.
19
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
Alligators can live up to 100 years.
337
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4