Friday Fact: Week #10

The pyramids were built around 2700 BC to 1500 BC, so around 4000 years ago and the last known woolly mammoth population remained alive on Wrangel Island in the Arctic Ocean until 4,000 years ago. 
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Polar Bear livers consist of tremendous amount of vitamin A, if consumed humans can die of overdose, a condition known as acute hypervitaminosis A . Why does the polar bear liver have so much vitamin A, you ask? Polar bears have a much higher tolerance for vitamin A. Their physiology evolved this tolerance in order to eat marine mammals such as seals which store high levels of vitamin A in their livers and blubber.
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Each human head contains around 150,000 sprout. Each strand is highly structured from the molecular to the cellular level making hair very strong. A single strand could hold 100g (3oz) in weight: and the combined hair of a whole head could support 12 tonnes.
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Hope you have enjoyed this weeks short and sweet Friday facts segment!! Thank you for stopping by. And as always if you would like us to mention a fact in next week Friday facts? Make sure to leave a comment and come back for more articles!!

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