Lamna ditropis, known as the salmon shark, inhabits the temperate waters of the North Pacific Ocean. It resembles the Great White Shark but is smaller, averaging 2.5 meters in length. It is endothermic, allowing it to maintain a higher body temperature in cold waters, which aids its predatory efficiency.

Lamna ditropis, commonly known as the salmon shark, is native to the North Pacific Ocean. Its geographical distribution includes the coastal and open ocean areas off the coasts of Japan, Russia, Alaska, Canada, and the western United States.

Salmon sharks inhabit temperate and subarctic waters, typically found in sea temperatures ranging from 5°C to 18°C (41°F to 64°F). They are pelagic, often found in the epipelagic zone but may dive to depths of over 150 meters (492 feet).

Salmon sharks are apex predators in their ecosystem, preying on a variety of fish species, including salmon, squid, and other cephalopods. They are known for their endothermic ability, which allows them to maintain a body temperature warmer than the surrounding water, aiding in their hunting efficiency in colder environments.