Word: zyopterus
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Shark fishing became big business in 1938 when "Tano" Guaragnella, a fin-sharp San Francisco fish broker, sent a soup-fin shark liver to a chemist, learned that the livers of Galeorhinus zyopterus are the richest known source of Vitamin...
Heroes of the boom were an unassuming shark called Galeorhinus zyopterus and a San Francisco fish broker named T. J. ("Tano") Guaragnella. Fishermen had always considered Galeorhinus a piscivorous, tackle-snarling, bait-swallowing pest whose carcass brought only $10 a ton for fertilizer, though Chinese sometimes bought his fins for soup. But shrewd Fish Buyer Guaragnella had a hunch. Seeing a huge Galeorhinus liver, he had it tested, found it was 100 times as rich in vitamin A as cod liver...
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