Sumatran cub with pumpkin enrichment.
Zoo residents treated to spook-tacular enrichment
Halloween's dark delights are not to be missed by the residents of London Zoo, as keepers serve up a variety of spooky snacks.
For the first time, the zoo's three Sumatran tiger cubs - Nakal, Budi and Cinta - revelled in the fearsome festivities by devouring pumpkins that were scent-marked to encourage the cubs' natural hunting instincts.
Other animals including penguins enjoyed pumpkins stuffed with their favourite treats. Giant Galapagos tortoise Dirk munched through his own pumpkin while the squirrel monkeys rooted their favourite nutty snacks out of pumpkin puzzles.
Squirrel monkey keeper Hannah Duprey said: "Our residents love getting involved with the spooky festivities at the Zoo, especially because they get terrific treats in their pumpkins!
"Giving our animals Halloween treats is fantastic enrichment for them; it encourages their natural hunting or foraging behaviours, and offers something new for them to investigate."
Image courtesy of ZSL London Zoo.