REUTERS/Arnd

REUTERS/Arnd Wiegmann

A cow stands on the Klausenpass mountain pass road, 1,952 m (6,404 ft) in the Swiss Alps August 19, 2009. In the background is the Urnerboden Valley.

REUTERS/Russell

REUTERS/Russell Cheyne

Moor manager Donald Collins stands with his dog on the opening day of the grouse shooting season on the Rottal Estate, Angus Glens, Scotland, August 12, 2009.

REUTERS/Alexander

REUTERS/Alexander Prokopenko/Pool

Ukraine's Prime Minister Yulia Tymoshenko receives a white Bengal tigress, named Tigryulia, as a gift during the 11th Ukrainian children's charity festival The Black Sea Games in Skadovsk, August 24, 2009.

REUTERS/Chaiwat

REUTERS/Chaiwat Subprasom

Thai veterinarian Juthamas Sumanam performs a vasectomy on a macaque monkey in the town of Lopburi, 155 km (96 miles) north of Bangkok, August 19, 2009.

REUTERS/Daniel

REUTERS/Daniel Munoz

Little penguins swim in their enclosure at Taronga Zoo in Sydney August 19, 2009.

REUTERS/China

REUTERS/China Daily

One of a pair of newborn twin panda cubs is seen at a wildlife preservation and breeding center in Louguantai county, Shaanxi province August 18, 2009.

REUTERS/Stephen

REUTERS/Stephen Hird

Abi the lioness licks one of her two ten-week-old Asiatic Lion cubs in their outside enclosure at London Zoo August 13, 2009.

REUTERS/Chor

REUTERS/Chor Sokunthea

A five-year-old elephant named Chhuk (meaning Lotus), breaks a coconut with a newly attached prosthetic leg, at the Phnom Tamoa Zoo in the Takoe province, 45 km (28 miles) south of Phnom Penh August 16, 2009. Chhuk's leg was amputated after a rescue from a forest fire in northeast Cambodia's Mondulkiri province in 2004 , a zoo official said.

REUTERS/Laszlo

REUTERS/Laszlo Balogh

Bri, a Bearded Collie, catches a frisbee during the first ever European Canine Disc Championship in Budapest August 23, 2009.

REUTERS/Laszlo

REUTERS/Laszlo Balogh

Choko, a Collie, catches a frisbee as owner Krisztina Ozdi watches during the first ever European Canine Disc Championship in Budapest August 23, 2009. The event, staged by Flydogs Hungary, attracted competitors from 10 countries.

REUTERS/Andres

REUTERS/Andres Stapff

Two and a half month old lion cubs are seen at Lecoqc zoo in the outskirts of Montevideo, August 13, 2009.

REUTERS/Chaiwat

REUTERS/Chaiwat Subprasom

Macaque monkeys sit in a row in the town of Lopburi, 155 km (96 miles) north of Bangkok, August 19, 2009. Thailand started a birth control programme to sterilise male monkeys with the aim of controlling their population in the famous monkey town of Lopburi. The programme took place after many villagers complained about the increasing numbers of monkeys and their aggressive attacks on people.

REUTERS/Chris

REUTERS/Chris Helgren

A dog sits in the shade with its owner in a hammock, at a beach for dogs on the Tiber river in Rome August 19, 2009.