Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
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 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
Dogs have been man's pet for over 14,000 years.
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Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10