OPEN WIDE! MONKEY GIVES FRIEND AN UNEXPECTED DENTAL CHECK-UP

This cheeky macaque gets up close and personal as he examines the dental hygiene of his fellow primate. Using his fingers to prise open his friend's mouth, he carefully inspects his teeth, searching for any unwanted visitors. The hilarious photographs were captured by British photographer David Williams, 41, on a visit to Tama Zoo, in Hino, Japan. David, from Bangor, Wales, says: “In these pictures you can see a macaque looking inside a friend's mouth, searching for fleas or insects.

Other great stories
SLEEPING IN THE WILDERNESS

SLEEPING within touching distance of wild African animals might not be everyone's idea of a relaxing break .

BEAUTIFUL BRITISH LANDSCAPES

FROM the rolling hills of the Scottish highlands to looming chalk cliffs in Sussex, these stunning photographs capture the spectacular beauty of Great Britain .

GATEWAY TO THE UNDERWORLD

SPURTING water 20ft into the air, this is one well you wouldn't want to dip your bucket into .

STUNNING WINTER PHOTOGRAPHS OF THE HIGHEST RAILWAY IN THE ALPS

ROLLING across a 65-metre-high viaduct in the Alps, the red carriages of the Bernina Express add a splash of colour to the spectacular snow-covered Swiss surroundings .

SECRET POOL IN THE MIDDLE OF THE DESERT

HIDDEN in the middle of the Mojave Desert, a secret oasis awaits intrepid travellers .

STRIKING IMAGES RECREATE WORLD WAR II

Primed and ready for action, this collection of striking images from the battlefield could be mistaken for authentic photos taking during World War II .

SQUIRRELS SQUABBLE OVER LUNCH

SQUABBLING over the last piece of grain, these hungry squirrels are determined to stock up on as much food as possible .

THUG FISH LOOK LIKE THEY MIGHT BATTER PHOTOGRAPHER

STARING open-mouthed into the camera, this shocked fish looks out of place in the middle of its angry friends .

ABANDONED PLAZA HOTEL

The beds are consumed by moss instead of customers at this abandoned hotel .

THE UNEXPECTED FRIENDLY GIANT

A baby sperm whale assumed the role of a friendly giant when faced with two awestruck divers .

STUNNING AURORA BOREALIS REFLECTED IN ICELAND

CONTRACT CANCELLED, DO NOT SYNDICATE .

HIS BAIT WAS SEALED

15-foot-long great white sharks on the hunt, in False Bay, South Africa - SHOCK and awe pictures of 15-foot-long great whites on the hunt will leave you stunned .