Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
One in three dog owners say they have talked to their pets on the phone.
427