Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
A domestic cat can sprint at about 31 miles per hour.
274
Denmark has twice as many pigs as there are people.
66
Condoms were originally made of animal intestines or linen.
347
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255