Carcharhinus obscurus, also known as the Dusky Shark, belongs to the family Carcharhinidae. This species of shark is commonly found in the Atlantic and Indian Ocean, and is known for its large size and dark coloration. The dusky shark is also called the black whaler, black shark, bay shark, and shovelnose shark. These different names are due to its coloration, black or dark-grey, and the shape of its nose. The dusky sharks are slow-moving and prefer sticking to the deeper parts of the water body they inhabit, making them difficult to sight. Dusky sharks are also characterized by their rounder snout and longer pectoral fins.