Michel Roggo / Banded cichlid (Heros severus) in flooded forest. Rio Tabajos, Amazon, Brazil.

Michael D. Kern / Giant redheaded centipede (Scolopendra heros), captive, from North America and Mexico

Pete Oxford / Banded chichlid / Green severum (Heros severus) amongst aquatic vegetation in permanant freshwater pond, Savannah, Rupununi, Guyana

Pete Oxford / Banded Cichlid (Cichlasoma severum) in aquatic vegetation, Rupununi, Guyana

Scott Leslie / Northern Moon Snail (Polinices heros), St. Margaret's Bay, Nova Scotia, Canada

Scott Leslie / Northern Moon Snail (Polinices heros) crawling on the ocean floor, Nova Scotia, Canada

Mark Moffett / Pleasing Fungus Beetle (Megalodacne heros), Alamos, sonoran Mexico

Tom Vezo / Giant desert centipede {Scolopendra heros} Green Valley, Arizona, USA

Tom Vezo / Giant Desert Centipede (Scolopendra heros) on dead Cholla cactus, Green Valley, Arizona

Jeff Rotman / Northern moon snail {Lunathia heros} scavenging on seabed at night, Atlantic, USA

Jeff Rotman / Northern moon snail {Lunathia heros} scavenging on seabed at night, Atlantic, USA

Tom Vezo / Giant desert centipede {Scolopendra heros} Green valley, Arizona, USA

Premaphotos / Giant desert centipede (Scolopendra heros) in desert, Arizona, USA