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
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
In 2005, in Africa, it was reported that three lions rescued a 12-year-old girl from kidnappers and guarded her for half a day until help came.
46
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12