Smooth hammerhead  (Sphyrna zygaena)

A member of a large and easily recognisable group of sharks, the smooth hammerhead can be distinguished from the other hammerhead species by the single notch in the centre of its hammer-shaped head. The eyes are located at either end of the hammer, and the particularly arched mouth is in line with the trail edge of the head (3). Olive-grey above and white below, the smooth hammerhead has a tall and sickle-shaped first dorsal fin and plain pectoral fins with black tips (4).