Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492
Two dogs were among the Titanic survivors.
262
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
10