Even the monkeys are laughing as Europe's zookeepers share their funniest photos of the year

Cheeky smiles are the specialty of Sagro the Barbary macaque, who lives at Colchester Zoo. His zookeeper Lisa Davis shot this hilarious picture of him grinning into the camera

This Red Panda closed its eyes in bless as it smelled flowers at the Five Sisters Zoo in West Lothian in a picture taken by Ryan Colman

Zookeeper Joanna Burch took this photo of two white rhinos seemingly getting it on at Colchester zoo this year

ZSL London Zoo's Gulid the dwarf mongoose curiously looked into the lens of Zookeeper Ruth Sutherland, who took this adorable picture

Millie Sewell took the photo on the left of Blossom, the curious European Badger living at British Wildlife Centre in East Surrey. 'She has slight wonky nose as the result of a car accident before she was rescued as a cub,' Ms Sewell said. Rodrigues the Fruit Bat at Tropical Butterfly House wildlife conservation park near Sheffield likes to hangout upside down, as the photo on the right taken by Ellie Latham shows

Howler monkey Mayantu was caught by zookeeper Lorena Jota Hickey as he stuffed a watermelon into his mouth at the Zoo de Beauval in France

These adorable arctic wolf cubs were captured by Christina Christensen as they were playing at the Knuthenborg Safari Park in Denmark

Judith Bowman took the mesmerising photo on the left of a Snow Leopard at Highland Wildlife Park. Bellatrix the Black Hornbill curiously (right) looks into the camera of Natalie Marshall at Birdworld in Farnham

A shocked ring tail lemur was captured by zookeeper Ryan Colman at Five Sisters Zoo in West Lothian

Gren-crowned crane Kwanza took a stance while being photographed by Zoe Michelle Cropper at Noah's Ark Farm in Clevedon

Ash and Friston the Eurasian Lynxes (left) demonstrated their roar to Emma Reekie at Drusillas Park in Sussex. Eden Willmott took the photo on the right of Little Miss Baby, a rescued harbour seal pup at Natureland Seal Sanctuary in Skegness