Lamna nasus, commonly known as the porbeagle shark, inhabits cold and temperate marine waters of the North Atlantic and Southern Hemisphere. This robust shark is known for its torpedo-shaped body, pointed snout, and crescent-shaped tail. It is a powerful swimmer and often seen in pursuit of schools of fish.

The Lamna nasus, commonly known as the porbeagle shark, is found in the cold and temperate waters of the North Atlantic Ocean. Its geographical distribution includes the western North Atlantic, from Newfoundland and Labrador in Canada to New England in the United States, and the eastern North Atlantic, from Norway and Iceland down to Portugal. It is also present in the southern hemisphere, particularly around the southern coasts of Australia and New Zealand, as well as parts of the southern Atlantic and Indian Oceans.

Porbeagle sharks inhabit cold to temperate marine environments, typically in waters ranging from 2 to 18 degrees Celsius (36 to 64 degrees Fahrenheit). They are predominantly found in offshore waters, often on the continental shelf and slope, but can also be found in deeper oceanic waters. They prefer environments with complex physical structures such as underwater ridges and seamounts.

The porbeagle is a pelagic predator, primarily feeding on a variety of fish species, including herring, mackerel, and squid. It plays a crucial role in maintaining the balance of marine ecosystems by controlling the population of its prey species. The shark is known for its strong swimming capabilities and migratory behavior, often undertaking long-distance movements in search of food and suitable breeding grounds.