Squirrels forget where they hide about half of their nuts.
698
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
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
There's a rare breed of pig that looks like a sheep.
14
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
The most expensive cow in the world was sold in 2009 for $1.2 million.
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