Pursuit of the Giant Bluefin

Also known as In Pursuit of the Giant Bluefin

It's one of the ocean's most extraordinary and mysterious creatures. It's often seen, but very little is known about it: it's the bluefin tuna. It's faster than a dolphin and its hunting prowess rivals that of a great white shark. Traveling at over fifty miles per hour, it crosses the oceans. However, very little is known about its movements and life history; it's a creature so evolved that it escapes human observation. National Geographic guides us on a journey to discover the bluefin tuna.