Georgette Douwma / Dash-and-dot goatfish (Parupeneus barberinus) Egypt, Red Sea.

Georgette Douwma / Spangled emperor (Lethrinus nebulosus) watching a Blue spotted ribbontail ray (Taeniura lymna) that is burrowing in the sandy bottom for prey. Egypt, Red Sea.

Georgette Douwma / Beaufort crocodile fish (Cymbacephalus beauforti) under coral overhang on sandy bottom. Egytp, Red Sea.

Georgette Douwma / Coral (Stylophora subseriata) Egypt, Red Sea.

Georgette Douwma / Acropora coral, Egypt, Red Sea.

Georgette Douwma / Fluted giant clam (Tridacna squamosa) Egypt, Red Sea.

Michele Westmorland / Triton mollusk (unidentified) with foot exposed. Galapagos Islands.

Jeff Rotman / Peacock flounder (Bothus lunatus) on the sea floor of Lembeh Strait, Celebes Sea, Sulawesi, Indonesia.

Georgette Douwma / Stonefish (Synanceia verrucosa) well camouflaged overgrown with algae, lying in a hole amongst corals. Algae (including macroalgae, like Padina) and sessile invertebrates often grow on its body surfa...

Georgette Douwma / Stonefish (Synanceia verrucosa) well camouflaged overgrown with algae, lying in a hole amongst corals. Algae (including macroalgae, like Padina) and sessile invertebrates often grow on its body surfa...

Georgette Douwma / Stonefish (Synanceia verrucosa) well camouflaged overgrown with algae, lying in a hole amongst corals. Algae (including macroalgae, like Padina) and sessile invertebrates often grow on its body surfa...

Georgette Douwma / Reef stonefish (Synanceia verrucosa) in a mating congregation, the males jostling for position and swimming over the females. The female stonefish releases its eggs on the bottom of the sea floor, th...