Rattlesnake mating sessions have been known to last more than 22 hours.
232
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
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
Domestic pigs average a top speed of about 11 miles per hour.
182
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
Cats recognise the voice of their owner, but never evolved to care.
22