skipjack tuna
Stocks of bluefin tuna are on the brink of collapse from overfishing.
Someone might pay hundreds of dollars for a large piece from a bluefin tuna.
That day we caught three bluefin tuna.
Scientists have found that the two populations of bluefin tuna migrate freely back and forth across the Atlantic.
The bluefin tuna is more endangered by fishing than whales, he said.
Bluefin tunas, unlike most fish, are homeothermic (warm blooded).
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