Chimpanzee and Tiger Cub

Two-year-old chimpanzee "Do Do" feeds milk to "Aorn", a 60-day-old tiger cub, at Samut Prakan Crocodile Farm and Zoo.

A female Canadian lynx

Siberian tigers

Siberian tigers sit up gesturing to visitors during a show at a zoo on the second day of the Lunar New Year in China.

Black Jaguar

Lolo, a black Jaguar, plays with her newborn spotted cub inside their cage at Jordan's zoo in Yaduda.

Two-month old tiger cubs

Two-month old tiger cubs are dressed up in Chinese outfits while waiting to join visitors celebrating Chinese New Year of the Tiger at the Sri Racha Tiger Zoo in southeatern Thailand.

Sundaland clouded leopard

The Sundaland clouded leopard, a newly identified and little understood species of big cat in Borneo, has been filmed for the first time.

Indochinese tiger

An Indochinese tiger, found mainly in Malaysia and Thailand, at a zoo in Kuala Lumpur.

A white tiger

A white tiger rests inside an enclosure at Beijing Zoo, China. There are fewer than 50 wild tigers left in China today, living in Yunnan, Tibet.

A female Sumatran Tiger

A female Sumatran Tiger, gives an affectionate lick to one of her cubs at Sydney's Taronga Zoo.

A sphynx cat

A Sphynx cat dressed in a coat is held by a model during the 8th International Cats Exhibition in Moscow.

Female and male lion cubs

Asian lioness

An Asian lioness is pictured with one of her two 10 week-old cubs at London Zoo.

A cheetah cub (acinonyx jubatus)

A cheetah cub (acinonyx jubatus) seen, at Basel Zoo in Basel. The cub is one of three born on June 17, 2009.

Lynx kitten

Black panther cubs

A new born black panther cub seen in the grass at the Tierpark zoo in Berlin, Germany. Female black panther cubs named Larisa and Sipura were born on April 26, at the Tierpark.

A Balkan lynx

Poaching is one of the biggest threats to the survival of this Balkan subspecies of the European lynx, the largest wild cat found on the continent.

Persian leopard

Two-and-a-half-month-old Persian leopard cub Chui, left, and her nine-year-old mother Cezi, seen in their enclosure, in Budapest Zoo, Hungary.

A panther

A panther is seen at a zoo in India.

A rare white lion

A rare white lion lies with her cubs at the Global White Lion Protection Trust game reserve in the Timbavati region of South Africa.

African lion

An African lion named Slavcho yawns in its enclosure at Sofia city zoo.