Two rockmover wrasse (Novaculichthys taeniourus) foraging. This fish is known for its habit of turning over loose rocks and coral rubble to uncover prey. Working in pairs, one fish turns over the rocks and the other grabs anything that is uncovered, typically feeding on crustaceans, molluscs and sea urchins. The rockmover wrasse inhabits a wide area of the tropics, from the west coast of central America to the east coast of Africa. It prefers shallow seas, down to some 25 metres. Filmed in Palau.