Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
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
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Denmark has twice as many pigs as there are people.
66