Epidemiologists study outbreaks of diseases, the causes, locations, and how various communities are affected, utilizing relative information to aid in the prevention of future outbreaks. Epidemiologists help to keep the public informed of methods to maintain and improve public health.
Based on these criteria, the smallest known extant shark species appears to be Etmopterus perryi, males of which mature at 16 to 17.5 cm TL and gravid females have been found at 19 to 20 cm TL (Springer & Burgess 1985).
Tweet. The smallest shark in the world is the Dwarf Lanternshark; a dogfish that lives in the Caribbean Sea. They grow to a maximum of 17 centimeters and eat small fish and shrimp. The next smallest shark in the world is the Pygmy Shark that grows up to 25 centimeters long.These sharks are very closely related.hey grow to a maximum of 17 centimeters and eat small fish and shrimp. The next smallest shark in the world is the Pygmy Shark that grows up to 25 centimeters long. These sharks are very closely related.