Prionace glauca, commonly known as the blue shark, is known for its vibrant blue coloration and slender, elongated body. It inhabits deep ocean waters and is highly migratory, often traveling long distances. Blue sharks are social creatures, sometimes forming large groups, and play a crucial role as apex predators in marine ecosystems.

Prionace glauca, commonly known as the blue shark, is found in temperate and tropical waters around the world. Its geographical distribution includes the Atlantic, Pacific, and Indian Oceans, as well as the Mediterranean Sea. It is particularly prevalent along the eastern coast of the United States, the western coast of Europe and Africa, and around Japan and New Zealand.

The blue shark typically inhabits deep oceanic waters, ranging from the surface down to depths of around 350 meters (1,150 feet). It prefers water temperatures ranging from 12 to 20 degrees Celsius (54 to 68 degrees Fahrenheit).

The blue shark occupies a pelagic niche, often found far from land in open ocean environments. It is a highly migratory species, covering vast distances across its range. The blue shark is a top predator, feeding on a variety of prey including fish, squid, and occasionally marine mammals. Its role in the ecosystem is crucial for maintaining the balance of marine food webs.