Tony Wu / Humphead parrotfish (Bolbometopon muricatum) shoal spawning in early morning, part of mass aggregation of thousands of fish. Caroline Islands, Palau.

Juergen Freund / Large schooling Bumphead parrotfish (Bolbometopon muricatum) with a passing Hawksbill turtle (Eretmochelys imbricata). Sipadan Island, Sabah, Malaysia

Georgette Douwma / Bumphead parrotfish (Bolbometopon muricatum) Malaysia.

Doug Perrine / Shoal of Giant bumphead parrotfish {Bolbometopon muricatum} Sipadan, Malaysia

David Fleetham / Bumphead parrotfish (Bolbometopon muricatum), Yap, Micronesia.

Alex Mustard / Bumphead parrotfish (Bolbometopon muricatum) gather at dawn on a shallow coral reef. Sipadan Island, Sabah, Borneo, Malaysia. Celebes Sea. Vulnerable species.

Juergen Freund / Bumphead parrotfish (Bolbometopon muricatum) shoal. Sipadan Island, Sabah, Borneo.

Pascal Kobeh / Group of Humphead parrotfish (Bolbometopon muricatum) swimming above coral reef, Sudan. Red Sea.

Pascal Kobeh / Two Humphead parrotfish (Bolbometopon muricatum) swimming on above coral reef, Sudan. Red Sea.

Pascal Kobeh / Humphead parrotfish (Bolbometopon muricatum) above coral reef, cleaned by two Blue streaked cleaner wrasses (Labroides dimidiatus) among Jewel fairy basslets / anthias (Pseudanthias squamipinnis) Suda...

Pascal Kobeh / Humphead parrotfish (Bolbometopon muricatum) swimming in open water, Sudan. Red Sea.

Pascal Kobeh / Group of Humphead parrotfish (Bolbometopon muricatum) swimming by coral drop off with divers in the background, Sudan. Red Sea. June 2013.