A Hummingbird looks for nectar among hanging plants in a balcony in Singapore
Rubi, a 3-month-old Asian Lion Cub, attempts to retrieve a pumpkin that fell into the pond in the lion enclosure at the London Zoo
A Naval Rating School commander gives a banana to a Long-Tailed Macaque on Thailand's Kledkaew Island. Hundreds of monkeys live on the island, and the Navy regularly supplies food to the monkeys after reports that many drowned while trying to catch fish from the sea
A big Dog frolics with a little dog in the yellow leaves of a park in Minsk, Belarus
Cambita, a Lion, peers out of her cage in Cochabamba, Bolivia, as she prepares for a new life in a U.S. wildlife sanctuary. The feline is one of the first animals to benefit from a new Bolivian law that defines the use of circus animals as "an act of cruelty." Cambita is living in a temporary home in a public park in the central Bolivian city of Cochabamba, waiting for veterinary clearance to be sent to the United States
Two Pygmy Hippopotamuses play in the Attica Zoological Park outside Athens, Greece.
A baby Chimpanzee plays in its enclosure at Taronga Zoo in Sydney.
An Orangutan meets an Otter in its enclosure at Tierpark Hagnbeck Zoo in Hamburg
A White-Tailed Doe munches on mid-Atlantic native berries in Great Falls, Virginia
Four-month-old Elephant Rani and her mother, Thura, are pictured in Hagenbeck's zoo in Hamburg, northern Germany
One of two little Black Jaguar babies makes its first public appearance with its spotted mother, Kiara, at the zoo in Berlin
Nadaya, an 8-year-old Western Lowland Gorilla, enjoys a pumpkin at the Brookfield Zoo in Brookfield, Ill
Laura Deely, 17, from Halesowen, West Midlands, England, has single-handedly cured two Sea Turtles of an eating disorder armed with just a clicker and a bucket of lettuce. Laura weaned the pair from a diet that was three-fifths fish, to one that is four-fifths greens.
A Snow Leopard plays with a pumpkin placed in its habitat as part of an animal enrichment activity at New York City's Central Park Zoo.
A newborn Square-lipped Rhinoceros stands next to its mother at the zoo in Erfurt, Germany
A Squirrel climbs down a tree in a park in Russia's southern city of Stavropol
Hounds watch from the kennels before they exercise in preparation for their first meet of the new hunting season in Bromham, Wiltshire, England.
Squirrel Monkeys at Bristol Zoo Gardens investigate a carved pumpkin that has been left as a special Halloween treat in their enclosure in Bristol, England.
A Cat named Magic plays in a pile of leaves in front of a home near Oakland, Ore.
A 12-year-old Persian Cat rests at the pet trade fair in the southern German city of Stuttgart
Monitor Lizards like this one are among the species that could soon disappear in the wild, experts say.
A flock of Geese cross a field in the eastern German city of Kuhhorst
A Horse grazes in the snow at the Pajares mountain pass in Leon, Spain
A Leopard Gecko swims in an aquarium tank during the annual Taiwan International Aquarium Expo at the World Trade Center in Taipei.
A Rhea stands in Cerro Castillo, on the Argentine side of Patagonia. It is the biggest bird in South America, and although it cannot fly, its body is adapted to run.
A Philippine Eagle Owl rests at the Ninoy Aquino Parks and Wildlife Center in Quezon City, the Philippines. The center, which serves as a repository and rehabilitation facility for wildlife with the objective to release animals back into their habitat, also serves as a venue for public education and as a training and research facility for future veterinarians and biologists.
A Spectacled Bear named Dolores walks around her enclosure at the zoo in the eastern German city of Leipzig. The animal is suffering from hair loss.
Two baby King Python Snakes and their mother are held by a zookeeper at the animal park in the southern German city of Nuremberg.
A 1-year-old Hippopotamus named Lucie sits in a cage as it is transported from the Safari Park in Ramat Gan, Israel, to a zoo in Ukraine.
A Cranwell's Horned Frog hangs out in its aquarium tank during the annual Taiwan International Aquarium Expo at the World Trade Center in Taipei.
Goldfish swim at the 2009 Taiwan International Aquarium Expo in Taipei.
A Japanese Horseshoe Crab swims in an aquarium tank during the annual Taiwan International Aquarium Expo at the World Trade Center in Taipei, Taiwan