Tunas are a group of saltwater fish that belongs to the family Scombridae. ¹⁾

There are around 15 species of tuna, including bluefin tuna, albacore tuna, and yellowfin tuna. ²⁾

Tunas are found in all oceans and are known for their ability to swim long distances and dive to great depths. ³⁾

Tunas are carnivorous and feed on smaller fish and invertebrates. ⁴⁾

Tunas are popular for commercial and recreational fishing and are also an important source of food for many people around the world. ⁵⁾

Tunas have a streamlined body shape, which allows them to swim at high speeds and make sharp turns. ⁶⁾

Tunas are known for their ability to maintain a high body temperature, which allows them to inhabit colder waters than many other fish species. ⁷⁾

Tunas have complex social structures and communicate with each other using body language and vocalizations. ⁸⁾

Tunas are able to migrate over long distances, with some species traveling thousands of miles each year. ⁹⁾

Tunas are highly migratory, and their movements are influenced by factors such as water temperature and the availability of prey. ¹⁰⁾

Tunas are able to reproduce quickly, with some species reaching sexual maturity at just one year of age.¹¹⁾

Tunas are threatened by overfishing, habitat destruction, and climate change, and several species are classified as vulnerable or endangered by the International Union for Conservation of Nature (IUCN). ¹²⁾

Tunas are an important component of many marine ecosystems, and their decline can have negative impacts on the overall health of these ecosystems. ¹³⁾

Tunas are popular as a source of food and are often canned or served as sushi or sashimi. ¹⁴⁾

Tunas are high in protein and omega-3 fatty acids and are considered a healthy food choice. ¹⁵⁾