The dusky shark, Carcharhinus obscurus, inhabits warm, shallow waters worldwide. This large, sleek predator features a long, pointed snout and distinctive dusky-colored fins. Known for its migratory behavior, it plays a crucial role in marine ecosystems by regulating prey populations.

Carcharhinus obscurus, commonly known as the dusky shark, is widely distributed in warm temperate and tropical waters around the world. It is found in the Atlantic, Pacific, and Indian Oceans, with notable populations along the eastern coast of the United States, in the Gulf of Mexico, the Mediterranean Sea, and around Australia and South Africa.

Dusky sharks typically inhabit continental and insular shelves, preferring waters ranging from the surf zone to depths of about 400 meters. They are known to frequent coastal areas, including estuaries and bays, especially during the juvenile stages. The species is often found in warmer waters, with temperatures generally above 20°C.

Carcharhinus obscurus is an apex predator and plays a critical role in marine ecosystems. It primarily feeds on bony fishes and cephalopods, but its diet can include other sharks and rays. The species is known for its long migratory patterns, which are often related to reproductive cycles and prey availability. It is considered a highly mobile species with a significant ecological role in maintaining the balance of marine food webs.