A close-up of the mouth of a whitemouth moray eel (Gymnothorax meleagris), showing its needle sharp teeth, United States of America, North America

American alligator with mouth open showing its teeth basking by Turner River by Tamiami Trial, the Florida Everglades, USA

Fin Whale, Balaenoptera physalus, surfacing at speed, blowing, showing jaw line, mouth, blowhole, Pico, Azores, Atlantic Ocean

A Bull Antarctic Fur Seal (Arctocephalus gazella) at Salisbury Plain, South Georgia, Southern Ocean, showing a threat display.

Antarctic fur seal (arctocephalus gazella) fortuna bay, south georgia, portrait of bull seal showing teeth.

Needle catfish (Farlowella acus), ventral view showing mouth, Manaus, Amazonas, Brazil, South America

Sperm Whale, Physeter macrocephalus, Breaching off the Azores Islands, showing eye, mouth and pectoral fin - awesome (RR)

Grey Seal (Halichoerus grypus) close up head shot of bull with mouth open showing aggression and a wave breaking over his head.. Mull of Kintyre near Campbeltown, Argyll, Scotland, UK

Blue whale (balaenoptera musculus) A blue whale head on showing the mouth under the water.The Gulf of California.

Sperm whale (physeter macrocephalus) . A relaxed sperm whale rolls onto it's back beside a yacht, showing the mouth quite clearly. Eastern Caribbean

Minke whale (Balaenoptera acutorostrata) lunge feeding showing throat grooves, Iceland

Redmouth Grouper (Aethaloperca rogaa) Showing its namesake bright red inside mouth. Can often be found living amongst colonies of Yellow Sweeper (Parapriacanthus ransonneti) which it vigorously protects from attack by passing jacks, in return for feeding from the same glassfish colony. Red Sea.

Grey Seal (Halichoerus grypus) close up head shot of bull with mouth open showing aggression. Mull of Kintyre near Campbeltown, Argyll, Scotland, UK

Turbot (Psetta maxima), viewed from above showing eyes and mouth against a sandy seabed, Firth of Forth, Scotland, UK North Sea

Turbot (Psetta maxima), head viewed from above, resting on sand, showing eyes and mouth, Firth of Forth, Scotland, UK North Sea

Gray whale (eschrictius robustus) A gray whale trailng water from its mouth and showing the baleen. Gulf of California.

Variable Thorny Oyster (Spondylus varians), open and feeding showing multi-coloured mantle, Sipadan, Malaysia

Sperm whale, Physeter macrocephalus, breaches in the Azores, showing mouth and underside (RR)

Queen Scallop (Aequipecten opercularis), small edible scallop showing wide open position, highly prized food source, St Abbs, Scotland, UK

Minke whale (Balaenoptera acutorostrata) lunge feeding at surface showing throat grooves, Husavik, Iceland

Variable Thorny Oyster (Spondylus varians), open and feeding showing multi-coloured mantle, Sipadan, Malaysia

Sperm whale. (Physeter macrocephalus). A breaching sperm whale showing its underside and mouth. Gulf of California.

Mixed Race woman showing heart-shape candy on tongue

Girl showing an adhesive bandage on her Knee

Symbiotic behaviour Symbiosis of jewel perch vermillion seabass (Cephalopholis miniata) lies at cleaning stationwith mouth wide open showing teeth rows of teeth motionless in coral reef lets cleaner wrasse bluestreak cleaner wrasse (Labroides dimidiatus) rid itself of parasites, Indian Ocean, Mascarene Islands, Mauritius, Africa

Toddler Making Funny Faces At The Camera And Putting His Fingers in His Mouth, Langley, British Columbia, Canada

Close-up of a blue goatfish (Parupeneus cyclostomus) showing the two barbels tucked under the chin, used to probe and detect prey; Maui, Hawaii, United States of America

Close-up of a Bengal tiger (Panthera tigris tigris) lying in the forest, widely yawning, Madhya Pradesh, India

Teenage girl shows off her braces, Lincoln, Nebraska, United States of America

Close-up of male lion (Panthera leo) showing bloody teeth, Serengeti National Park, Tanzania

Young Boy holding up Large Mouth Bass

A hippo, Hippopotamus amphibius, open mouth, yawning, showing teeth, Londolozi Game Reserve, South Africa

A close-up of a lion's mouth, Panthera leo, showing barbed tongue, teeth, whiskers and nose with brown, dried leaves, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa

A leopard, Panthera pardus, lies on a boulder and yawns, mouth open showing teeth, head tilted back, long white whiskers, in black and white, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa

A leopard cub's head, Panthera pardus, lies in a tree, alert, mouth open showing tongue, paw drapes over branch, yellow brown eyes, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa

lemon shark shark swimming under water over sandy ground underside of head visible mouth open showing teeth horizontal format underwater shot lemon sharks Bahamas Central America America Atlantic Ocean Bahamas Central America America Atlantic Ocean

striped remora or live sharksucker remora cleaning scraps from inside the mouth of a lemon shark Negaprion brevirostris resting on the bottom is a strong current Thought to be a parasite this is one of the first images showing a benefit for the shark in this relationship West End Grand Bahamas Atlantic Ocean

Girls eating ice pops on beach