Rattlesnake mating sessions have been known to last more than 22 hours.
232
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
A puppy is born blind, deaf, and toothless.
16
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
The reindeer is the only mammal that can see UV light.
17