The Bluefin Tuna

The bluefin tuna (scientific name thunnus spp) is a subspecies of tuna that inhabits the waters of the Coral Triangle. It is the largest subspecies of tuna, growing between 6 and 10 feet long and weighing 1,500 pounds. It also has the sharpest vision of any type of bony fish: since it hunts by sight, this may be one of the reasons why it is a tremendous predator of animals such as eels, herring, and mackerel from the moment it hatches. Another potential reason is that it is built for speed, having fins that can retract, bodies that are shaped like torpedoes, and eyes that are set flush to its body. In addition to all of this, it is also capable of migrating across oceans, diving more than 4,000 feet, and living up to 40 years. It has three recognized subspecies: the Pacific bluefin tuna, the Atlantic bluefin tuna, and the Southern bluefin tuna.

The bluefin tuna is classified as an Endangered species. It is this close to becoming extinct because much of its population has been and is still killed for food, as it is considered to be a highly desired delicacy in Asian sushi and sashimi. Because of this, the World Wildlife Fund's (WWF's) effort to save it consists of stopping the overfishing and ensuring the recovery of its Atlantic subspecies, as it is the largest and most endangered one. This is being done because it maintains a balance in its habitat as one of the top predators in the marine food chain.

Source for picture and all information: https://www.worldwildlife.org/species/bluefin-tuna