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Meet the bluefin tuna, the toughest fish in the sea | TED-Ed

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Exploring our Oceans

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What’s as big as a polar bear, swallows its prey whole, and swims at forty miles an hour? It’s not a shark or a killer whale... it’s the Atlantic bluefin tuna— the largest and longest-lived of the 15 tuna species. Its unique set of adaptations make it one of the most dominant predators in the ocean. Grantly Galland and Raiana McKinney detail how these fish go from tiny hatchling to ocean giant.

Atlantic bluefin tuna leave the warm waters of their spawning grounds to hunt across the Atlantic Ocean – when it comes time to reproduce, what do they do?

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Exploring our Oceans offers insight into the scientific marvels of the marine world, and the part you can play in uncovering the ocean's mysteries and safeguarding its future. From biology to physics to engineering, understanding our oceans involves a multitude of scientific approaches. Dive into our curated videos and supporting lesson materials, and find out how you can be a part of it all.

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