Flip Nicklin / Pacific Sailfish (Istiophorus platypterus) trio swimming off of Manualita Island on the west side of Cocos Island, Costa Rica

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

Norbert Wu / Pacific Sailfish (Istiophorus platypterus) underwater, fastest fish, 68 miles per hour, Sea of Cortez, Baja California, Mexico

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

John Downer Productions / Peacock flounder attempts to simulate the squares of chessboard (Bothus lunatus) - Resolution restriction due to image digitised from film - 'Weird Nature' BBC tv series.

Alex Mustard / A backlit photo of a British World War II BSA M20 motorbike inside Hold 2 (port side, upper level) of the wreck of the Thistlegorm, with lionfish (Pterois volitans). Sha'ab Ali, Red Sea. Sinai, Eg...

David Hall / Blue damselfish (Pomacentrus pavo), portrait. Komodo, Indonesia.

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

Gary Bell/ Oceanwide / Common Lionfish (Pterois volitans), Christmas Island, Australia