French Polynesia and the Cook Islands have created adjacent shark sanctuaries spanning roughly 6.7 million sq. km of ocean, a move that reflects a growing trend to protect sharks worldwide and more than doubles the area now off-limits to any shark fishing.
As many as a third of all shark species face some threat of extinction, according to the International Union for Conservation of Nature, in part because their fins are coveted for the Asian delicacy of shark fin soup.
In the last few months, American Samoa and the Micronesian state of Kosrae have barred shark fishing off their shores, and the European Union and Venezuela have both prohibited the practice of cutting off a shark's fins while discarding the body at sea.
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