Alex Mustard / Great hammerhead shark (Sphyrna mokarran) female at night with Bar jacks (Caranx ruber), South Bimini, Bahamas. The Bahamas National Shark Sanctuary. Gulf Stream, West Atlantic Ocean.

Doug Perrine / Barjacks (Caranx ruber), Yellowtail snapper (Ocyurus chrysurus), and Sergeant major damselfish (Abudefduf saxatilis) swimming around wreck of bow gun on C-58 shipwreck off Puerto Morelos, near Cancun,...

Alex Mustard / Shoal of Bar jacks (Caranx ruber) hunting school of Silversides fish (Atherinidae) in coral cavern. East End, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Alex Mustard / Pair of Bar jacks (Caranx ruber) hunting Silversides (Atherinidae) inside cave. Devil's Grotto, George Town, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Alex Mustard / A long exposure renders Bar jacks (Carangoides ruber) as ghostly trails as they swim around a sponge, on a coral reef, at night. East End, Grand Cayman, Cayman Islands. Overall winner of GDT competiti...

Chris Newbert / Bigeye Trevally (Caranx sexfasciatus) school, 40 feet deep, Solomon Islands

Flip Nicklin / Cavalla (Caranx sp) school off of Cocos Island, Costa Rica

Chris Newbert / Bigeye Trevally (Caranx sexfasciatus) schooling, 30 feet deep, Solomon Islands

Chris Newbert / Bigeye Trevally (Caranx sexfasciatus) school, 40 feet deep, Solomon Islands

Norbert Wu / Bigeye Trevally (Caranx sexfasciatus) school form a moving circle, Borneo

Fred Bavendam / Bigeye Trevally (Caranx sexfasciatus) school with diver, Bali, Indonesia

Alex Mustard / Bar jack (Caranx ruber) hunting a school of silversides (Atherinidae) in a coral cavern. George Town, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.