Rattlesnake mating sessions have been known to last more than 22 hours.
232
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Cats and dogs can hear ultrasound.
350
A puppy is born blind, deaf, and toothless.
16
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