Scalloped hammerhead

Photo: Kris Mikael Krister · CC BY

Scalloped hammerheads use offshore pinnacles as navigational waypoints and social gathering sites, with peak sightings at The Pinnacle occurring during the dry season months from March through June. The cephalofoil — their distinctive hammer-shaped head — carries an extraordinarily dense array of electroreceptors that allow hammerheads to detect the faint electric fields produced by prey buried in sand. Critically endangered globally, each sighting here carries genuine conservation significance.