David Fleetham / Peacock grouper (Cephalopholis argus), Maui, Hawaii.

Alex Mustard / Peacock grouper (Cephalopholis argus) with fishing line caught in its mouth, Ras Mohammed National Park, Sinai, Egypt. Red Sea.

Fred Bavendam / Day octopus (Octopus cyanea) spreading its arms and webbing over rock to trap prey, with Blue-spotted peacock grouper (Cephalopholis argus) and Goldsaddle goatfish (Parupeneus cyclostomus) watching fo...

David Fleetham / Peacock grouper (Cephalopholis argus) swimming in midwater above the reef, Maui, Hawaii, Pacific Ocean.

David Fleetham / A Peacock hind (Cephalopholis argus), an alien species, swimming through a coral reef, Maui, Hawaii, USA.

David Fleetham / Yellow margin moray eel (Gymnothorax flavimarginatus) with two Blue goatfish (Parupeneus cyclostomus), a Bluefin trevally (Caranx melampygus) and a Peacock grouper (Cephalopholis argus) hunting co-ope...

Doug Perrine / Hunting coalition of Peacock groupers (Cephalopholis argus) and Whitemouth moray eel, (Gymnothorax meleagris) Honokohau, North Kona, Big Island, Hawaii, USA

Doug Perrine / Hunting coalition of a Peacock grouper (Cephalopholis argus) and a whitemouth moray eel (Gymnothorax meleagris) Honokohau, North Kona, Big Island, Hawaii. The grouper is waiting for the eel to go hunt...

Doug Perrine / Hunting coalition of Peacock grouper, (Cephalopholis argus) and Whitemouth moray eel, (Gymnothorax meleagris) Kohanaiki, North Kona, Big Island, Hawaii. The eel hunts inside the reef crevices while th...

Alex Mustard / Atlantic goliath grouper (Epinephelus itajara) feeding on a Caribbean spiny lobster (Panulirus argus). Despite the awkward shape of its meal, the grouper made short work of it. Jardines de la Reina, G...