Flip Nicklin / Humpback Whale (Megaptera novaeangliae) mother and calf, Hawaii

Doug Perrine / Great white shark jaws open at surface {Carcharodon carcharias} South Africa (Non-ex).

Martin Dohrn / African driver / Siafu / Safari ant biting {Dorylus/ Anomma speciess). Species is non-stinging, but jaws can tear human flesh. East Africa

Anup Shah / Nile crocodile (Crocodylus niloticus) attacking a Wildebeest (Connochaetes taurinus) as it crosses the Mara River. Masai Mara National Reserve, Kenya, September 2009

Bence Mate / Jacare / Yacare caiman (Caiman crocodilus yacare) with young armadillo prey ib its jaws. Pantanal, Brazil. WINNER: Eric Hosking Award portfolio image 3/6 - Wildlife Photographer of the Year 2010

Ann & Steve Toon / Nile crocodile (Crocodylus niloticus) with jaws wide open, Kruger National Park, South Africa

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

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

Doug Perrine / Great white shark, jaws open at surface {Carcharodon carcharias} South Africa (Non-ex).

Doug Perrine / Great white shark jawing at surface {Carcharodon carcharias} South Africa (Non-ex).

Jeff Rotman / Sand tiger shark (Carcharias taurus). Caribbean, Atlantic Ocean

LYNN M. STONE / Fangs of Eastern diamondback rattlesnake. Florida, USA {Crotalus adamanteus}

Jeff Rotman / Sand tiger shark (Carcharias taurus). Caribbean

Jeff Rotman / Children in jaws of Megalodon - prehistoric Great white shark relative, Australia Model released.

Anup Shah / Male Chimpanzee 'Sheldon' knuckle walking carrying dead Red colobus monkey in jaws {Pan troglodytes schweinfurtheii}, 19-years-old, high ranking male of Kasekela community, Gombe NP, Tanzania. 2002

Jabruson / African rock python {Python sebae} feeding on Red billed quelea {Quelea quelea} Tsavo East NP, Kenya

Pete Oxford / Man holding Piranha to showing sharp teeth & jaws {Serrasalmidae family} Ecuador South America, Amazon

Alan James / Basking shark - jaws open {Cetorhinus maximus} off Cornwall UK

Mark Carwardine / Jaws and teeth of Great white shark {Carcharodon carcharias} Malta hunted

MYN / Seth Patterson / Hairy panther ant (Pachycondyla villosa) Sabal Palm Sanctuary, Lower Rio Grande Valley, Texas, USA, October. meetyourneighbours.net project

MYN / Seth Patterson / Hairy panther ant (Pachycondyla villosa) Sabal Palm Sanctuary, Lower Rio Grande Valley, Texas, USA, October. meetyourneighbours.net project

MYN / Seth Patterson / Hairy panther ant (Pachycondyla villosa) Sabal Palm Sanctuary, Lower Rio Grande Valley, Texas, USA, October. meetyourneighbours.net project

MYN / Seth Patterson / Hairy panther ant (Pachycondyla villosa) Sabal Palm Sanctuary, Lower Rio Grande Valley, Texas, USA, October. meetyourneighbours.net project

Juan Carlos Munoz / Fossil of prehistoric marine reptile Plesiosaur (Plesiosauria) showing skull, jaws, eyes and teeth, Spain

Juan Carlos Munoz / Fossil of the Pterosaur Pterodactyl (Pterodactylus) from the Jurassic period, Germany

Mark Moffett / Green Tree Ant (Oecophylla smaragdina) holding silk-producing larva in its jaws and weaving the larva's silk to bind leaves for the colony's treetop nest, Daintree, Queensland, Australia

Mark Moffett / Green Tree Ant (Oecophylla smaragdina) holding silk-producing larva in its jaws and weaving the larva's silk to bind leaves for the colony's treetop nest, Daintree, Queensland, Australia

Florian Möllers / Quinling Golden snub nosed monkey (Rhinopitecus roxellana qinlingensis), adult male sitting on a branch, threat display with open jaws. Zhouzhi Nature Reserve, Qinling Mountains, Shaanxi, China.

MYN / Piotr Naskrecki / Orb weaver spider (Araneae) portrait, Concord, Massachusetts, USA, June. meetyourneighbours.net project

Kerstin Hinze / Yellow sac spider (Cheiracanthium punctorium), male and web on grass seedhead, Brandenburg, Germany,

John Cancalosi / Close-up of Tail-less Whip Scorpion (Phrynus / Amblypygi whitei). Santa Rosa National Park tropical dry forest, Costa Rica.

Kathryn Jeffs / Skull of Weddell seal (Leptonychotes weddellii) scavenged after Southern Type B Killer whale kill (Orcinus orca) Antarctica. Taken on location for BBC Frozen Planet series, January

Ross Hoddinott / 2020VISION / Close up of Common / Round leaved sundew {Drosera rotundifolia}, Westhay Nature Reserve (Somerset Wildlife Trust), Somerset Levels, Somerset, UK, June. Did you know? The sundew is the wolf of the plan...

Laurent Geslin / Common Zebra (Equus quagga) climbing up out of the Mara Rivers escaping with a large wound from the jaws of a Nile crocodile (Crocodylus niloticus), Masai Mara reserve, Kenya, July, sequence 5/5

Linda Pitkin / 2020VISION / Brown Trout (Salmo trutta) in disused quarry, Jackdaw Quarry, Capernwray, Carnforth, Lancashire, UK, August. Photographer quote: 'Mature male brown trout have large jaws and, like salmon, sometimes de...

Sergey Gorshkov / Hippopotamus (Hippopotamus amphibius) coming out of water with jaws wide open, Okavango Delta, Botswana, January

Ernie Janes / Handler puts his head inside the jaws of a crocodile to entertain tourists at Zoo, Thailand

Ernie Janes / Handler puts his head inside the jaws of a crocodile to entertain tourists at Zoo, Thailand

John MacPherson / 2020VISION / Bottlenose dolphin (Tursiops truncatus) breaching with salmon in its jaws, Moray Firth, Inverness-shire, Scotland, UK, May

John MacPherson / 2020VISION / Bottlenose dolphin (Tursiops truncatus) breaching with salmon in its jaws, Moray Firth, Inverness-shire, Scotland, UK, sequence 3/3

John MacPherson / 2020VISION / Bottlenose dolphin (Tursiops truncatus) breaching with salmon in its jaws, Moray Firth, Inverness-shire, Scotland, UK, sequence 2/3

John MacPherson / 2020VISION / Bottlenose dolphin (Tursiops truncatus) breaching with salmon in its jaws, Moray Firth, Inverness-shire, Scotland, UK, sequence 1/3

Anup Shah / Nile crocodile (Crocodylus niloticus) attacking a wildebeest (Connochaetes taurinus) as it crosses the Mara River. Masai Mara National Reserve, Kenya, August 2009

Edwin Giesbers / Two Fire ant (Solenopsis sp) workers, one carrying the other in its jaws, with green plant material behind

Edwin Giesbers / Two Fire ant (Solenopsis sp) workers, one carrying the other in its jaws.

Jeff Rotman / Man holds out Shark jaws, to be sold as trinkets, Thoothoor, India.

Jeff Rotman / Portrait of local man holding up shark jaws to be sold as trinkets, Thoothoor, India. Model released.

Edwin Giesbers / Portrait of Siberian tiger (Panthera tigris altaica) lying in the snow, jaws slightly open revealing teeth, captive

Stephen Dalton / Green tiger beetle (Cicindela campestris) feeding on caterpillar (head in jaws) England, UK

Dietmar Nill / Grass snake (Natrix natrix) eating a frog, natural behaviour, Germany

Jeff Rotman / Shark jaws hung up outside Shark fin dealer, Natal, Brazil, Atlantic Ocean, January 2008

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

Stephen Dalton / Close up of head of Common Cockchafer / Maybug {Melolontha melolontha} larva in soil, feeds on grass roots, UK

Stephen Dalton / Slender orb / Long jawed orb weaver spider (Tetragnatha extensa) close up showing enlarged chelicerae of male, UK, Tetragnathidae

Stephen Dalton / European water spider {Argyroneta aquatica} underwater, close up showing large jaws, UK, Argyrometidae

Andy Rouse / Female Saltwater crocodile (Crocodylus porosus) jumping out of water opening jaws, Northern Territories, Australia

Mark Bowler / Wood ant {Formica rufa}

David Tipling / American alligator (Alligator mississippiensis) with jaws wide open, Everglades NP, Florida, USA

Tony Phelps / Skull of Saltwater crocodile {Crocodylus porosus}

Mark Moffett / Ant (Odontomachus sp) ready to catch its prey with its jaws open, Tiputini, Ecuador

Suzi Eszterhas / Kodiak / Alaskan brown bear (Ursus arctos middendorffi) carrying caught fish in jaws. Katmai National Park, Alaska, USA

Wild Wonders of Europe / Lundgren / Dead Atlantic salmon (Salmo salar) River Orkla, Norway, Orkla River, Norway, September 2008

Wild Wonders of Europe / Lundgren / Dead Atlantic salmon (Salmo salar) River Orkla, Norway, Orkla River, Norway, September 2008

Inaki Relanzon / Dried Shark jaws and teeth, illegal trade, Morondava, Madagascar

Inaki Relanzon / Close up of teeth and jaws of Nile crocodile (Crocodylus niloticus) Berenty private reserve, south Madagascar

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

Kerstin Hinze / Grass Snake (Natrix natrix) feeding on an Edible frog (Rana esculenta) Bulgaria, sequence 2/2

Jane Burton / Puff adder {Bitis arietans} swallowing its prey, a Grass rat, captive, sequence 4/5

Solvin Zankl / An alciopid polychaete worm {Vanadis sp} everting its proboscis with jaws attached, Atlantic ocean

Premaphotos / Stag beetle (Cyclommatus tarandus) male on Mount Kinabalu, Borneo

Premaphotos / Stag beetle (Cyclommatus tarandus) male on Mount Kinabalu showing the enormous jaws, Borneo

GEORGETTE DOUWMA / Hawksbill turtle (Eretmochelys imbricata) feeding on sponges at base of coral rubble. Malaysia.

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

Premaphotos / Green tree / Weaver ant (Oecophylla smaragdina) workers co-operating to hold two leaves together with their jaws; another ant inside uses a larva to produce silk to join the edges of the leaves togeth...

Doug Perrine / Tiger shark (Galeocerdo cuvier) lunging for bait, North Shore, Oahu, Hawaii, USA, Central Pacific Ocean

Tony Phelps / Camel / Sun spider {Solifugae} Little Karoo, South Africa

Tony Phelps / Puff adder {Bitis arietans} feeding on mouse, Little Karoo, South Africa

ZSSD / African Slender-snouted Crocodile (Crocodylus cataphractus) with open jaws, native to Africa

PREMAPHOTOS / Treehopper (Heteronotus reticulatus) rear end mimics an ant with its jaws open, in rainforest, Costa Rica

Michael Hutchinson / White rhinoceros (Ceratotherium simum) underside of skull of poached rhino showing teeth of upper jaw, Kenya

Ingo Arndt / Stag Beetle (Lucanus cervus) showing large jaws, Germany

PREMAPHOTOS / Woolcarder bee (Anthidium manicatum) female using her jaws to cut and tear away a ball of hairs from {Stachys lanata} leaf to build her nest, UK

PREMAPHOTOS / Red mason bee (Osmia rufa) female leaving her mud mine carrying a load of mud in her jaws to make her nest, UK

Jeff Rotman / Saltwater crocodile {Crocodylus porosus} 5-meter adult close up of teeth and jaws, Cape York, Australia

Anup Shah / Two Hippopotamuses fighting {Hippopotamus amphibius} Katavi NP, Tanzania

Juergen Freund / Filipino with dried jaws of Whale shark (Rhincodon typus) Philippines