Rattlesnake mating sessions have been known to last more than 22 hours.
232
There's a rare breed of pig that looks like a sheep.
14
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
A lion in the wild usually makes no more than twenty kills a year.
186
Sharks, like other fish, have their reproductive organs in their chests.
248
A giraffe's kick is so powerful that it can decapitate a lion.
216