Tuna are incredibly underestimated animals. We usually think of them as ingredients, instead of creatures. In reality, they are marvelous predators; on par with lions, sharks, and other creatures we generally respect. Today we are going to talk about an animal that is extreme in every way... Extreme speed, extreme size, and extreme price: the Atlantic bluefin tuna. Find out why the Atlantic bluefin tuna is going extinct, and what you can do to help them, all on this episode of Species.