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

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

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

Jurgen Freund / Yellow Shortfin lionfish (Dendrochirus brachypterus) face. Lembeh Strait, Sulawesi, Indonesia

Tim Laman / Lionfish (Pterois) hovering in a Sea Fan in a view looking toward the surface of the water. Misool Island vicinity. Near smaller island of Fiabacet. West Papua, Indonesia, April 2007

David Fleetham / White-eyed moray eel (Muraena thyrsoides) close to Zebra lionfish (Dendrochirus zebra), Philippines.

Doug Perrine / Lionfish {Pterois miles} with Seafan in foreground, Thailand

Georgette Douwma / Lionfish (Pterois volitans) hunting over anemone. Lembeh Strait, North Sulawesi, Indonesia

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

Georgette Douwma / Lionfish (Pterois miles) swimming by shipwreck. Red Sea, Egypt

Jurgen Freund / Lionfish on coral reef, Indo-Pacific

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 reef, 20 feet deep, Red Sea

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

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

Shane Gross / Lionfish derby, a competition to catch invasive Lionfish (Pterois volitans). One team caught 466 lionfish in a single day during the Green Turtle Cay, Bahamas, June 2016

Shane Gross / Lionfish (Pterois volitans) caught in a Lionfish derby, a competition to catch invasive Lionfish (Pterois volitans). One team caught 466 lionfish in a single day during the Green Turtle Cay, Bahamas,...

Shane Gross / Scuba diver feeds an invasive lionfish (Pterois volitans) to a Caribbean reef shark (Carcharhinus perezi) off Grand Bahama Island, Bahamas. It was once thought that if the sharks learned that lionfish...

Shane Gross / Scuba diver feeds an invasive lionfish (Pterois volitans) to a Caribbean reef shark (Carcharhinus perezi) off Grand Bahama Island, Bahamas. It was once thought that if the sharks learned that lionfish...

Shane Gross / Scuba diver spears and invasive lionfish (Pterois volitans) off Grand Bahama Island, Bahamas. Spearing is illegal in The Bahamas, however, a special exemption was made for lionfish.

Shane Gross / An invasive lionfish (Pterois volitans) is fed to a Caribbean reef shark (Carcharhinus perezi) off Grand Bahama Island, Bahamas. It was once thought sharks could be trianed to feed on lionfish by feed...

Shane Gross / A scuba diver spears an invasive lionfish (Pterois volitans) off Grand Bahama Island, Bahamas. Spearing is illegal in The Bahamas, however, a special exemption was made for lionfish.

Shane Gross / Sign for Lionfish drop off. Local fisherman are paid to catch invasive lionfish (Pterois volitans) in the Caribbean to help reduce their numbers and, in turn, help the reefs. Image made on Eleuthera,...

Shane Gross / Mural painted on the side of a small grocery store on Eleuthera Island, Bahamas depicting how the fate of the Bahamian fishery is tied closely to that of the invasive lionfish (Pterois volitans). Eleu...

Shane Gross / Woman wearing a Lionfish (Pterois volitans) necklace in The Bahamas. The species is invasive and fisherman are encouraged to cull them.

Shane Gross / Jewelry made from the tails of invasive lionfish (Pterois volitans) Eleuthera, Bahamas.

Shane Gross / Invasive lionfish (Pterois volitans) in a lab tank to be studied by researchers. Bahamas, September 2015.

Shane Gross / The tails of invasive lionfish (Pterois volitans) dry on a cutting board. The tails will be made into jewelry. Image made on Eleuthera, Bahamas.

Shane Gross / An invasive Lionfish (Pterois volitans) and tourist snorkelers, The Bahamas.

Shane Gross / Chef preparing plate of lionfish, this invasive species is said to taste like snapper. North Florida, USA, February.

Shane Gross / Invasive Lionfish (Pterois volitans) which have taken over and are wiping out native fish in the Atlantic ocean. The highest densities are in the northern gulf of Mexico. Destin, Florida, USA.

Shane Gross / Invasive Lionfish (Pterois volitans) which have taken over and are wiping out native fish in the Atlantic ocean. The highest densities are in the northern gulf of Mexico. Destin, Florida, USA.

Shane Gross / Invasive lionfish (Pterois volitans) on the end of a spear. Florida, USA. February 2018. In order to keep their numbers low, scuba divers and snorkellers are encouraged to spear as many as possible.

Shane Gross / An invasive lionfish (Pterois volitans) hunting at night off Eleuthera Island, Bahamas.

Shane Gross / Lionfish (Pterois volitans) over coral at night in The Bahamas. Invasive species.

Shane Gross / Lionfish (Pterois volitans) over coral in The Bahamas. Invasive species.

Shane Gross / Invasive Lionfish (Pterois volitans) is caught as part of an effort to help coral reefs adapt to this new predator. Abaco, Bahamas.

Jurgen Freund / Shortfin Lionfish (Dendrochirus brachypterus) and two Golden coral goby (Paragobiodon xanthosoma) using rubbish as their home, Sulawesi, Indonesia. November.

Georgette Douwma / Shortfin lionfish (Dendrochirus brachypterus). Lembeh Strait, North Sulawesi, Indonesia.

Alex Mustard / Pair of Shortfin lionfish (Dendrochirus brachypterus) swimming up into the water column and spawning a raft of eggs at night. The male is the larger fish on the right. Bitung, North Sulawesi, Indonesi...

Georgette Douwma / Zebra lionfish (Dendrochirus zebra). North Sulawesi, Indonesia.

Franco Banfi / Scuba diver hunting invasive Lionfish (Pterois volitans) to feed to Crocodiles. May 2015.

Magnus Lundgren / Wild Wonders of China / Zebra lionfish (Dendrochirus zebra) Po Bin Chau, Sai Kung archipelago, Hong Kong, China.

David Fleetham / Dwarf lionfish (Dendrochirus brachypterus), Philippines.

Georgette Douwma / Juvenile Red lionfish (Pterois volitans) West Papua, Indonesia.

Alex Mustard / Portrait of a gurnard lionfish (Parapterois heterura) on the seabed. Anilao, Batangas, Luzon, Philippines. Verde Island Passages, Tropical West Pacific Ocean.

Franco Banfi / Spotfin lionfish (Pterois antennata) portrait, Cabilao House Reef, Cabilao Island, Bohol, Central Visayas, Philippines, Pacific Ocean.