Wild Wonders of Europe / Maitland / Female Giant / Mammoth wasp (Megascolia flavifrons) close-up of face showing short antennae and long curved jaws or mandibles, Stenje region, Galicica National Park, Macedonia, June 2009

Wild Wonders of Europe / Maitland / Male Giant / Mammoth wasp (Megascolia flavifrons) close-up of face showing long antennae and small jaws, Stenje region, Galicica National Park, Macedonia, June 2009

Mark Bowler / Isula / Bullet ant (Paraponera clavata) close-up showing mandibles, Peru

Michael Pitts / Basking shark {Cetorhinus maximus} feeding with mouth wide open, off Cornwall, UK

Kim Taylor / Green Tiger Beetle (Cicindela campestris) portrait showing jaws, Surrey, UK

Anup Shah / Wildebeest {Connochaetes taurinus} climbing out of river to escape the jaws of a Nile crocodile {Crocodylus niloticus} Masai Mara GR, Kenya

Peter Scoones / Spectacled caiman underwater reflections (Caiman crocodilus) Pantanal, Brazil photographed during making of BBC Planet Earth series 2005

Kim Taylor / Egg eating snake about to swallow egg, Sequence 1/8 {Dasypeltis scabra} Africa

Martin Dohrn / African driver / Siafu / Safari ant close up portrait of soldier with large jaws {Dorylus / Anomma species}. Ant is blind. Tanzania, East Africa

Martin Dohrn / Army ant soldier portrait - jaws used for defence and suture purposes.{Eciton burchelli} Santa Rosa NP, Guanacaste, Costa Rica, Central America

Mark Moffett / Leafcutter Ant (Atta cephalotes) worker carries leaf with its jaws full, workers carrying leaves must rely on a special cast of smaller ants riding on the leaves to defend against Phorid fly (Phoridae...

Juergen Freund / Close-up of jaw of Garfish {Belone belone} Indo-pacific