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).
What Is The Smallest Species Of Shark? The worldâs smallest shark is said to be the dwarf lantern shark (Etmopterus perryi). When fully grown this shark reaches a length of just 6.7 inches (17cm). The females of this species are slightly larger at 7 1/2 to 8 inches (19 â 20 cm).he shark is a type of fish with a large, long body and predominant dorsal fin. They have a full cartilaginous skeleton and most species of shark have several rows of sharp teeth. They are covered with a layer of dermal denticles that protects their skin from damage and parasites.