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).
Hisayoshi Suganuma. Daruma is a cookie-cutter shark fishman and a former officer of the New Fishman Pirates. Daruma is a cookie cutter shark fishman, being the smallest one amongst the officers of the crew by far, as well as one of the smallest fishmen that appeared so far in the series. He has circular eyes, a flat nose and sharp teeth; his arms are notably larger than his hands and his skin is red.