Gary Bell/ Oceanwide / Common Lionfish (Pterois volitans) hunting Basslets (Pseudanthias sp), Christmas Island, Australia

Gary Bell/ Oceanwide / Zebra Lionfish (Dendrochirus zebra), Great Barrier Reef, Australia

Alex Mustard / Lionfish (Pterois volitans) sitting on the rim of large sponge on Bloody Bay Wall, Little Cayman, Cayman Islands, Caribbean Sea.

Juergen Freund / Face of a Common lionfish (Pterios volitans) on top of the reef. Lembeh Strait, North Sulawesi, Indonesia

Juergen Freund / Common lionfish (Pterois volitans) seen from the rear. Lembeh Strait, North Sulawesi, Indonesia

Chris Newbert / Common Lionfish (Pterois volitans), 70 feet deep, Solomon Islands

Chris Newbert / Soft Coral (Dendronephthya sp) schooling Pygmy Sweeper (Parapriacanthus ransonneti) and Lionfish (Pterois volitans)

Chris Newbert / Common Lionfish (Pterois volitans) swimming over coral reef, Red Sea

Chris Newbert / Common Lionfish (Pterois volitans) swimming over reef, 20 feet deep, Red Sea

Fred Bavendam / Common Lionfish (Pterois volitans) lurking among Feather Star Crinoids clinging to the lip of a large Barrel Sponge, Bali, Indonesia

Georgette Douwma / Lionfish / Turkeyfish group hunting on coral reef {Pterois volitans} Andaman sea, Thailand

Alex Mustard / Clearfin lionfish (Pterois radiata) mating. The female (left) has just released a raft of eggs, which is visible between her tail and the red face of the male. Taken around dusk, during the summer in...