Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
In 2011, there were 3 known cases around the world of twins coming from different fathers.
30
A man named Ziona Chana lives in a 100 room, four storey house set amidst the hills of Baktwang village in the Indian state of Mizoram and has the world's biggest family with 39 wives, 94 children, 14 daughters-in-law and 33 grandchildren.
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The world's longest traffic jam took place in Beijing, China. It was over 60 miles long and lasted 11 days.
15
A woman named Rachel Krishevsky who died at age 99 had 1,400 direct descendants.
17