Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The colossal squid has the largest eyes in the world.
4
When cats are happy, they may squeeze their eyes shut.
10
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
The station master and operating officer at the Kishi Station, Japan, is a cat!
18