"With the holidays over, it's time to get back in shape - and Moscow Zoo's inhabitants are no exception, with staff organising special foraging games to stimulate the body and the mind! Footage released on Sunday shows Ding Ding the panda pulling treats from pine branches with unfailing persistence - first with her teeth and then, when that doesn't work, with her paws. The video also captures a raccoon attempting to outwit a glass dome containing hidden nuts. The zoo's press service explained that such activities helped animals develop their natural foraging skills. Unlike other similar animals, pandas don't hibernate during winter because their low-calorie bamboo diet does not allow them to store enough fat for the long winter's sleep."