A coati licks a pumpkin during Halloween celebrations at the Schoenbrunn Zoo in Vienna, Austria, in this photo released Oct. 28.
Meerkats get in the Halloween spirit as they play with a carved pumpkin at the Schoenbrunn TheZoo in Vienna.
A baby elephant gets a share of a Halloween treat in a Vienna zoo.
A tiger appears suspicious as he sniffs a carved pumpkin at the Schoenbrunn Zoo.
An orangutan stands next to carved pumpkins as Halloween comes to Vienna's Schoenbrunn Zoo.
An elephant eats a pumpkin during Halloween celebrations at the Schoenbrunn Zoo in Vienna.
A stag deer forages for food at the National Trust's Dunham Massey Park on Oct. 24 in Altrincham, United Kingdom.
A pet owner and her dog go as characters from "The Wizard of Oz" at the 23rd Annual Tompkins Square Halloween Dog Parade on Oct. 26 in New York City.
Dogs and a baby dressed as characters from "Star Wars" attend the 23rd Annual Tompkins Square Halloween Dog Parade.
A baboon, holding its baby, tastes a pumpkin on Oct. 29 at the Hagenbeck Zoo in Hamburg, Germany.
A cat is pictured on Oct. 26 during a cat exhibition in Moscow.
Alexander Demianchuk / Reuters
Grisha, a 7-year-old raven sits on a carved pumpkin during Halloween celebrations at the zoo in St. Petersburg, Russia, on Oct. 26.
A bumblebee sits on a flower on Oct. 25 in Nochten,Germany.
A giraffe greets visitors on Oct. 25 at the zoo in Duisburg, Germany.
A six-weeks-old African wild foal looks around at the Zoological Center of Tel Aviv-Ramat Gan, on Oct. 4.
A squirrel monkey looks in a mirror at the London Zoo on Oct. 4.
Geese walk on a field in Essen, Germany on Oct. 24.
Darko Vojinovic / AP
A newborn baby zebra named Seka rests at the Belgrade Zoo in Serbia on Oct. 24.
A ruffed lemur is pictured in his enclosure at the zoo in Wroclaw, Poland on Oct. 24.
A python lays on the bed at Bali Heritage Reflexology and Spa on Oct. 27 in Jakarta, Indonesia.