Saturday/ the Greenland shark

This article about Greenland sharks is fascinating.  Sharks don’t have bones for carbon dating, so a research team used a protein in the shark’s eye to determine that these sharks easily reach 200 years in age, and some that are almost 400 years old have been found. They only reach reproductive age at an estimated 156 years!

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Picture by Julius Nielsen, from the on-line article on http://arstechnica.com/

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