Franco Banfi / Scuba diver with big Gulf grouper (Mycteroperca jordani), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Franco Banfi / Scuba diver with big Gulf grouper (Mycteroperca jordani), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Franco Banfi / Big Gulf grouper (Mycteroperca jordani) in front of a Shoal of Big-eye jacks (Caranx sexfasciatus), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Franco Banfi / Big Gulf grouper (Mycteroperca jordani), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Franco Banfi / Scuba diver with big Gulf grouper (Mycteroperca jordani), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Franco Banfi / Big Gulf grouper (Mycteroperca jordani), Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Alex Mustard / Portrait of a Starry grouper (Epinephelus labriformis) over coral. La Paz, Baja California Sur, Mexico. Sea of Cortez, Gulf of California, East Pacific Ocean.

Claudio Contreras / Flag Cabrilla (Epinephelus labriformis), Espiritu Santo National Park, Sea of Cortez (Gulf of California), Mexico, February

Alex Mustard / Smaller female Coral grouper (Cephalopholis miniata) flashes her submissive lighter colouration at larger, darker male. Jackson Reef, Strait of Tiran, Sinai, Egypt. Gulf of Aqaba, Red Sea.

Claudio Contreras / Gulf grouper (Mycteroperca jordani), IUCN Endangered, Cabo Pulmo National Park, Sea of Cortez (Gulf of California), Mexico, July

Claudio Contreras / Leopard grouper (Mycteroperca rosacea), IUCN Vulnerable, yellow morph, and Graybar grunt (Haemulon sexfasciatum), Cabo Pulmo National Park, Sea of Cortez (Gulf of California), Mexico, July

Claudio Contreras / Flag cabrilla (Epinephelus labriformis), Cabo Pulmo National Park, Sea of Cortez (Gulf of California), Mexico, July