Emanuele Biggi / Great Fen / Raft spider (Dolomedes plantarius), adult female eating an invasive species of fish, Western mosquitofish, (Gambusia affinis), Alessandria, Italy, August.

Alex Hyde / Fishing spider (Trechalea) waiting to catch a Killifish (Cyprinodontiformes) in a rainforest stream at night, Central Caribbean foothills, Costa Rica.

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.

Konrad Wothe / Foureyed fish (Anableps anableps) split level view, South America, captive

Alex Mustard / Tarpon (Megalops atlanticus) hunts silversides (Atherinidae) inside a coral cavern. George Town, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

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.

Pascal Kobeh / Diver in a school of sand smelts (Atherina presbyter), Canary Islands

Pascal Kobeh / School of sand smelts (Atherina presbyter), Canary Islands

Graham Eaton / Shoal of Hardyhead Silverside (Atherinomorus lacunosus) hunted by a shoal of Bluefin Trevally (Caranx melampygus) along a shoreline. Komandoo Island, Maldives, January.

Alex Mustard / Blacktip reef shark (Carcharhinus melanopterus) swims beneath a jetty and schools of silversides (Atherinidae) on a coral reef. Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea. Tropical West Paci...

Alex Mustard / Coral grouper (Cephalopholis miniata) waits in ambush, hiding against a seafan (Annella sp.) hunting silversides (Atherinidae), with schooling bigeye snapper (Lutjanus lutjanus) behind. Misool, Raja A...