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
STRIPED MARLIN SPEARS ITS CATCH

A striped marlin means business as it spots lunch and spears a small fish .

THE UNEXPECTED FRIENDLY GIANT

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

Korean Mass Games

These are the amazing close up pictures of North Korea's mass games - after photographers were previously banned from taking shots so close to the dazzling formation dances .

MAN AND NATURE

LEAF-ing much to the imagination, this camera trickery is blooming marvellous .

VIBRANT TIME-LAPSE VIDEOS CAPTURE BLOSSOMING FLOWERS

VIBRANT bursts of colour fill the screen as beautiful flowers blossom in these time-lapse videos .

GATEWAY TO THE UNDERWORLD

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

BABY WORKOUT

FROM a Kung-Fu professional to a mini incredible hulk, these are the babies you wouldn't want to mess with .

CUTE MINI LION

MEET the little lion of suburbia with a mane that makes him look like a mini-king of the jungle .

OWLS PLAY TUG-OF-WAR

TUGGING on the wing of his sibling, this needy owl is after some attention .

CHEEKY FROG HITCHES A RIDE ON A SNAIL

A lazy tree frog, tired of hopping along a branch, chooses the slowest form of transport when it jumps on top of an unsuspecting snail .

BATTY ABOUT BATMAN - MAN SPENDS £65K ON COLLECTION

Kevin Silva, 52 from Indiana in the USA, has spent an estimated £65K ($100K) on Batman trinkets over the years, and even keeps his 2,500-item haul in his very own basement 'Bat Cave' .

EMPTY LONDON UNDERGROUND

USUALLY full to bursting, these London Underground stations stand silent and completely commuter free .