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
GIVE US A KISS - CHEEKY ORANGUTAN PUCKERS UP FOR CAMERA

SHOWING off her best assets for the camera, this cheeky orangutan is in the mood for love, puckering up her lips to blow the biggest kiss she can .

STUNNING CONTRAST OF ENGLISH SETTINGS

CONTRASTING settings reveal some of England’s most beautiful landscapes in all their glory .

CHEEKY BABY GORILLA

THIS cheeky gorilla tries his best to wriggle free from his mum .

CLOSE ENCOUNTERS OF THE BUG KIND

THIS alien-like bug would look more at home in outer-space but it can actually be found wriggling around here on Earth .

MONKEY LOVE

PUCKERING up and enjoying some quality time, these are the most lovable monkeys on the planet .

HOUSEWORK-OUT

STEPFORD wives from the 1950's and 60's are performing history's most sexist exercise programme .

CHEEKY SQUIRREL STICKS TONGUE OUT

An adorable little squirrel wakes from a nap and pops out his tongue for the camera .

FIGHTING BLACKBACK GORILLAS

FISTS fly as two gorillas take each other on in a dramatic battle .

DIVERS EXPLORE UNDERWATER CANYON WITH 100M VISIBILITY

A diver explores the crystal clear waters of the Silfra canyon in southern Iceland, which is the only place on Earth where you can dive or snorkel between two continental plates .

BACKFLIPPING SHARK SOARS DURING SEAL HUNT

Exploding out of the water, a great white shark performs a backflip during a hunt for seals .

FROZEN WATERFALLS

COURAGEOUS CLIMBERS scale frozen waterfalls in Canada, as the ice threatens to collapse beneath them .