Amur Leopard Cub

Saint Louis Zoo/Robin Winkelman

Amur Leopard Cub

Saint Louis Zoo/Robin Winkelman

Amur Leopard Cub

Saint Louis Zoo/Robin Winkelman

Amur Leopard Cub

Saint Louis Zoo/Robin Winkelman

Taronga Zoo Welcomes Baby Gorilla

SYDNEY, AUSTRALIA - JANUARY 25: Baby "Kipenzi" sits in her mother "Kriba's" arms at the Taronga Zoo on January 25, 2011 in Sydney, Australia. The baby western lowland Gorilla, "Kipenzi" was born to mother "Kriba" and father "Kibabu" on January 15th. Western lowland Gorillas are on the critically endangered list. (Photo by Brendon Thorne/Getty Images)

Taronga Zoo Welcomes Baby Gorilla

SYDNEY, AUSTRALIA - JANUARY 25: Baby "Kipenzi" sits in her mother "Kriba's" arms at the Taronga Zoo on January 25, 2011 in Sydney, Australia. The baby western lowland Gorilla, "Kipenzi" was born to mother "Kriba" and father "Kibabu" on January 15th. Western lowland Gorillas are on the critically endangered list. (Photo by Brendon Thorne/Getty Images)

Taronga Zoo Welcomes Baby Gorilla

SYDNEY, AUSTRALIA - JANUARY 25: Baby "Kipenzi" sits in her mother "Kriba's" arms at the Taronga Zoo on January 25, 2011 in Sydney, Australia. The baby western lowland Gorilla, "Kipenzi" was born to mother "Kriba" and father "Kibabu" on January 15th. Western lowland Gorillas are on the critically endangered list. (Photo by Brendon Thorne/Getty Images)

New baby Rhino born at St. Louis Zoo

The Saint Louis Zoo has announced that a black rhinoceros calf was born to first-time parents, mother Kati Rain and father Ajabu in St. Louis on January 14, 2011. Weighing 120-1/2 pounds, the little male is nursing well and being cared for by his mother, according to Zoo staff. This is the first black rhino calf to be born at the Saint Louis Zoo in 20 years. In all, eight black rhino calves have been born at the Zoo. The black rhino has experienced the most drastic decline of any rhino species. In 1970, it was thought there were about 65,000 black rhinos in Africa. By 1993, there were only 2,300 survivors in the wild. Black rhinos are heavily poached, because it is thought in many Asian countries that the rhino horn has medicinal uses. UPI/Saint Louis Zoo

New baby Rhino born at St. Louis Zoo

The Saint Louis Zoo has announced that a black rhinoceros calf was born to first-time parents, mother Kati Rain and father Ajabu in St. Louis on January 14, 2011. Weighing 120-1/2 pounds, the little male is nursing well and being cared for by his mother, according to Zoo staff. This is the first black rhino calf to be born at the Saint Louis Zoo in 20 years. In all, eight black rhino calves have been born at the Zoo. The black rhino has experienced the most drastic decline of any rhino species. In 1970, it was thought there were about 65,000 black rhinos in Africa. By 1993, there were only 2,300 survivors in the wild. Black rhinos are heavily poached, because it is thought in many Asian countries that the rhino horn has medicinal uses. UPI/Saint Louis Zoo

A three-day old female baby Rotschild gi

A three-day old female baby Rotschild giraffe stands in front of her mother Kleopatra at the Prague Zoo on January 26, 2011 in the Czech capital. AFP PHOTO / MICHAL CIZEK (Photo credit should read MICHAL CIZEK/AFP/Getty Images)

A three-day old female baby Rotschild gi

A three-day old female baby Rotschild giraffe stands in front of her mother Kleopatra at the Prague Zoo on January 26, 2011 in the Czech capital. AFP PHOTO / MICHAL CIZEK (Photo credit should read MICHAL CIZEK/AFP/Getty Images)

A three-day old female baby Rotschild gi

A three-day old female baby Rotschild giraffe sits at the Prague Zoo on January 26, 2011 in the Czech capital. AFP PHOTO / MICHAL CIZEK (Photo credit should read MICHAL CIZEK/AFP/Getty Images)

A one day old Asian elephant female calf

A one day old Asian elephant female calf lies between her mothers legs in her enclosure at Chester Zoo, in Chester, north-west England, on January 24, 2011. The unnamed newborn calf is the second baby elephant born at the zoo in the past six months. AFP PHOTO/PAUL ELLIS (Photo credit should read PAUL ELLIS/AFP/Getty Images)

A one day old Asian elephant female calf

A one day old Asian elephant female calf stands between two elephants in her enclosure at Chester Zoo, in Chester, north-west England, on January 24, 2011. The unnamed newborn calf is the second baby elephant born at the zoo in the past six months. AFP PHOTO/PAUL ELLIS (Photo credit should read PAUL ELLIS/AFP/Getty Images)

San Francisco Zoo Debuts Baby Giant Anteater

SAN FRANCISCO, CA - JANUARY 20: A newborn baby Giant Anteater rides on the back of his mom, Evita, at the San Francisco Zoo on January 20, 2011 in San Francisco, California. The new infant giant anteater, born on December 22, 2010, made its first public appearance at the Zoo. (Photo by Justin Sullivan/Getty Images)

San Francisco Zoo Debuts Baby Giant Anteater

SAN FRANCISCO, CA - JANUARY 20: A newborn baby Giant Anteater rides on the back of his mom, Evita, at the San Francisco Zoo on January 20, 2011 in San Francisco, California. The new infant giant anteater, born on December 22, 2010, made its first public appearance at the Zoo. (Photo by Justin Sullivan/Getty Images)

San Francisco Zoo Debuts Baby Giant Anteater

SAN FRANCISCO, CA - JANUARY 20: A newborn baby Giant Anteater rides on the back of his mom, Evita, at the San Francisco Zoo on January 20, 2011 in San Francisco, California. The new infant giant anteater, born on December 22, 2010, made its first public appearance at the Zoo. (Photo by Justin Sullivan/Getty Images)

Ocelot (Leopardus pardalis) cubs Viento

Ocelot (Leopardus pardalis) cubs Viento and Estrella snuggle up to their mother Sara in their eclosure at the Zoo in Berlin, January 18, 2011. The two youngsters were born on November 14, 2010 but made their photo call debut in the German capital today. AFP PHOTO/ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images)

Ocelot (Leopardus pardalis) cubs Viento

Ocelot (Leopardus pardalis) cubs Viento and Estrella play in their eclosure at the Zoo in Berlin, January 18, 2011. Their mother Sara gave birth to the two youngsters on November 14, 2010 but they made their photo call debut in the German capital today. AFP PHOTO/ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images)

Ocelot (Leopardus pardalis) cubs Viento

Ocelot (Leopardus pardalis) cubs Viento and Estrella snuggle up to their mother Sara in their eclosure at the Zoo in Berlin, January 18, 2011. The two youngsters were born on November 14, 2010 but made their photo call debut in the German capital today. AFP PHOTO/ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images)

Gorilla mother Dian holds her baby Quemb

Gorilla mother Dian holds her baby Quembo on January 6, 2011 at the zoo in Frankfurt/M., western Germany. Quembo was born on December 20, 2010 at the zoo. AFP PHOTO FRANK RUMPENHORST GERMANY OUT (Photo credit should read FRANK RUMPENHORST/AFP/Getty Images)

Gorilla mother Dian holds her baby Quemb

Gorilla mother Dian holds her baby Quembo on January 6, 2011 at the zoo in Frankfurt/M., western Germany. Quembo was born on December 20, 2010 at the zoo. AFP PHOTO FRANK RUMPENHORST GERMANY OUT (Photo credit should read FRANK RUMPENHORST/AFP/Getty Images)

Gorilla mother Dian holds her baby Quemb

Gorilla mother Dian holds her baby Quembo on January 6, 2011 at the zoo in Frankfurt/M., western Germany. Quembo was born on December 20, 2010 at the zoo. AFP PHOTO FRANK RUMPENHORST GERMANY OUT (Photo credit should read FRANK RUMPENHORST/AFP/Getty Images)

A lion cub walks next to its mother at t

A lion cub walks next to its mother at the zoo in Cali, department of Valle del Cauca, Colombia, on December 20, 2010. A female lion was born in captivity three weeks ago. AFP PHOTO/ LUIS ROBAYO (Photo credit should read LUIS ROBAYO/AFP/Getty Images)

A female lion comforts her cub at the zo

A female lion comforts her cub at the zoo in Cali, department of Valle del Cauca, department of Valle del Cauca, Colombia, on December 20, 2010. A female lion was born in captivity three weeks ago. AFP PHOTO/ LUIS ROBAYO (Photo credit should read LUIS ROBAYO/AFP/Getty Images)

A three-week old baby orang-utan, Vili,

A three-week old baby orang-utan, Vili, lays on belly of his mother Mengala at Budapest Zoo and Botanic Garden on December 30, 2010. Vili was born on December 6 at the Zoo. AFP PHOTO / ATTILA KISBENEDEK (Photo credit should read ATTILA KISBENEDEK/AFP/Getty Images)

The baby giraffe "Tebogo" is licked by i

The baby giraffe "Tebogo" is licked by its mother "Monique" in their enclosure at the zoo of Frankfurt/Main, central Germany, during its presentation to the public on December 22, 2010. The baby giraffe was born on December 9, 2010 and weight 82 kilogramme at its birth. AFP PHOTO / ARNE DEDERT GERMANY OUT (Photo credit should read ARNE DEDERT/AFP/Getty Images)

he baby giraffe "Tebogo" licks her snout

he baby giraffe "Tebogo" licks her snout in her enclosure at the zoo of Frankfurt/Main, central Germany, during its presentation to the public on December 22, 2010. The baby giraffe was born on December 9, 2010 and weight 82 kilogramme at its birth. AFP PHOTO / ARNE DEDERT GERMANY OUT (Photo credit should read ARNE DEDERT/AFP/Getty Images)

Panda Bear 'Po' Baptism at Madrid Zoo Acquarium

MADRID, SPAIN - DECEMBER 21: Spanish actor Florentino Fernandez visits the newborns Panda Bear at Madrid Zoo Acquarium on December 21, 2010 in Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)

Panda Bear 'Po' Baptism at Madrid Zoo Acquarium

MADRID, SPAIN - DECEMBER 21: Spanish actor Florentino Fernandez visits the newborns Panda Bear at Madrid Zoo Acquarium on December 21, 2010 in Madrid, Spain. (Photo by Carlos Alvarez/Getty Images)

Two of seven lion cubs born to two siste

Two of seven lion cubs born to two sisters in August and September play in their enclosure at the National Zoo in Washington on December 18, 2010 as they make their debut at the zoo. Both litters were fathered by Luke, the zoo's sole male lion until the birth of the cubs, who are the first to be born at the zoo in more than 20 years. AFP PHOTO/Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)

Five of seven lion cubs born to two sist

Five of seven lion cubs born to two sisters in August and September play in their enclosure at the National Zoo in Washington on December 18, 2010 as they make their debut at the zoo. Both litters were fathered by Luke, the zoo's sole male lion until the birth of the cubs, who are the first to be born at the zoo in more than 20 years. AFP PHOTO/Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)

Three of seven lion cubs born to two sis

Three of seven lion cubs born to two sisters in August and September play with one of the females at the National Zoo in Washington on December 18, 2010 as they make their debut at the zoo. Both litters were fathered by Luke, the zoo's sole male lion until the birth of the cubs, who are the first to be born at the zoo in more than 20 years. AFP PHOTO/Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)

White lion babies Niza (L) and Nero are

White lion babies Niza (L) and Nero are held by keeper Hanze Hamza on December 15, 2010 in Hodenhagen, northwestern Germany. The twins were born by Caesarean on December 2, 2010 and are bottle-fed until they can be acclimatized in the lions' family living at the Serengeti Park in Hodenhagen. AFP PHOTO JOCHEN LUEBKE GERMANY OUT (Photo credit should read JOCHEN LUEBKE/AFP/Getty Images)

White lion babies Niza (L) and Nero are

White lion babies Niza (L) and Nero are bottle-fed on December 15, 2010 in Hodenhagen, northwestern Germany. The twins were born by Caesarean on December 2, 2010 and are bottle-fed until they can be acclimatized in the lions' family living at the Serengeti Park in Hodenhagen. AFP PHOTO JOCHEN LUEBKE GERMANY OUT (Photo credit should read JOCHEN LUEBKE/AFP/Getty Images)