SCUBAZOO / SCIENCE PHOTO LIBRARY SCUBAZOO / SCIENCE PHOTO LIBRARY
Tuna fishing hook being held in a fisherman's hand. Tuna (family Scombridae) are large fish that live in the open ocean. They prey on other, smaller fish, as well as squid. It is an edible fish and is of great importance to commercial fishing, though there are fears that it is being overfished. This is a traditional tuna fishing hook as used in the Maldives, an island nation in the Indian Ocean.
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