Tui De Roy / Waved Albatross (Phoebastria irrorata) courtship display sequence, Punta Cevallos, Espanola Island, Galapagos Islands, Ecuador

Tui De Roy / Flightless Cormorant (Phalacrocorax harrisi) drying stunted wings, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Michio Hoshino / Galapagos Sea Lion (Zalophus wollebaeki) trio resting on a beach, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) courting males vying for female's attention, Genovesa Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Great Frigatebird (Fregata minor) recently formed pair, female inspecting male in courtship display with extended gular pouch, Genovesa Tower Island, Galapagos Islands, Ecuador

Tui De Roy / Red-footed Booby (Sula sula) couple courting in Croton shrub, Wenman Island, Galapagos Islands, Ecuador

Tui De Roy / Greater Flamingo (Phoenicopterus ruber) group and Galapagos Sea Lion (Zalophus wollebaeki) sharing Salt Pond, Rabida Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pup cavorting in undersea cave, Seymour Island, Galapagos Islands, Ecuador

Tui De Roy / Scalloped Hammerhead Shark (Sphyrna lewini) swimming along deep wall, Wenman Island, Galapagos Islands, Ecuador

Tui De Roy / Olive Ridley Sea Turtle (Lepidochelys olivacea) swimming in open water, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) newborn pup nursing, Cape Douglas, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) pups, Mosquera Island, Galapagos Islands, Ecuador

Pascal Kobeh / Sea slug or nudibranch (Ardeadoris / Glossodoris cruenta) New Caledonia, Pacific Ocean.

Georgette Douwma / Nudibranch (Ardeadoris cruenta / Glossodoris cruenta). West Papua, Indonesia. Indo-West Pacific.

Georgette Douwma / Nudibranch (Ardeadoris cruenta / Glossodoris cruenta). West Papua, Indonesia. Indo-West Pacific.

Constantinos Petrinos / Nudibranch (Glossodoris cruentus) Sulawesi, Indonesia