National Zoo’s success at breeding clouded leopards

National Zoo Welcomes Rare Clouded Leopard Cubs

by Guy Raz

All Things Considered, July 5, 2009 – The Smithsonian’s National Zoo is bursting with pride over its latest additions: two rare clouded leopards. The two yet-to-be-named baby leopards were born in late March at the zoo’s research center in Front Royal, Va., a far cry from their native habitat in Southeast Asia. The species, hunted for skins and medicinal uses, is endangered. The zoo is trying to preserve the species, but has not been successful mating the animals.

It’s been nearly two decades since a birth at the zoo.

Little is known about the mating habits of clouded leopards because their natural habitat is thick jungle and few are observed in the wild. In captivity, the male will sometimes kill the female it is paired with, according to the National Zoo’s JoGayle Howard, who has been studying the animals for decades.

“We really did want to see if we could prevent the male aggression, and what worked the best was to put 6-month-old cubs together and see if they would bond and grow up,” says Howard. “And that really was the secret.”

The cubs’ parents, Hannibal and Jao Chu, were imported from Thailand and grew up together.

And in a stroke of luck, three other clouded leopards were born at the Nashville Zoo. Those cubs will be introduced to the two born at the National Zoo. Officials are hopeful they will mate.

Produced by Matt Martinez


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Legislation to protect big cats in the wild advances

The Great Cats and Rare Canids Act gets overwhelming approval in House of Representatives.

Posted: April 24, 2009, 3 a.m. EDT

Wildlife advocates are praising the recent passage of an act that seeks greater protections for endangered and iconic cat and dog species, including leopards, cheetahs and African wild dogs.

The Great Cats and Rare Canids Act, introduced by Rep. Jay Inslee, D-Wash., garnered overwhelming approval by the House of Representatives on Tuesday, April 21. Passage of the act supports conservation programs, educational resources and increased monitoring and law-enforcement measures to prevent poaching and illegal trafficking.

The legislation would provide financial resources to restore populations of rare wild cat and canine species and protect their habitats. The bill was approved by a vote of 290-118.
The bill defines “rare felid” to: (1) mean any of the felid species lion, leopard, jaguar, snow leopard, clouded leopard, cheetah, Iberian lynx, and Borneo bay cat, including any subspecies or population of such a species; and (2) exclude any species, subspecies or population that is native to the United States and any tiger.

The act, HR 411, builds upon an existing program, the Multinational Species Conservation Fund, which provides funds to benefit tigers and other wild animals.

This new legislation expands that program to provide funds for additional wild cats, according to the World Wildlife Fund.

“Wild and rare cat and dog species are some of the most iconic animals on the planet,” said Dr. Sybille Klenzendorf, managing director of species conservation at World Wildlife Fund. “The bipartisan bill that passed the House will help ensure these majestic creatures continue to roam the wild for generations to come.”

Supporters said that the passage marks an important stride in the battle to save great cats from the loss of habitat and food sources. A vote in the Senate is pending.

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National Zoo’s clouded leopard cubs both male

Clouded Leopard Cubs Both Male

Posted: 1:00 PM Apr 11, 2009
Last Updated: 5:45 PM Apr 10, 2009

Both clouded leopard cubs born last month at a National Zoo facility in northern Virginia are male.

Zoo officials said Thursday that the sex of the cubs born March 24 at the Conservation and Research Center in Front Royal, Virginia could not be determined until their first veterinary examination.

The cubs, who have not been named, have opened their eyes and both weigh about 19.5 ounces.

The cubs’ parents, Hannibal and Jao Chu, were imported from Thailand last year. The births are the first in the official North American clouded leopard zoo population in six years.

The zoo, part of the Smithsonian Institution, has 14 clouded leopards, including two at the zoo in Washington.


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Clouded leopards born at National Zoo faciility

Endangered and Adorable
Zoo Research Center Celebrates Leopard Cubs

By Michael E. Ruane
Washington Post Staff Writer
Wednesday, March 25, 2009; A01

In the end, Hannibal did not administer the fatal bite to his mate’s neck. And Jao Chu did not immediately kill their offspring, as is often the case.

And so, early yesterday, despite murderous tendencies in the captive species, two newborn clouded leopard cubs were found alive, well and squealing at the National Zoo’s Conservation and Research Center in Front Royal, Va.

They were taken immediately from their gorgeous mother before she could do them harm, or do them in, placed in an incubator set at 88 degrees and fed salt water from baby bottles. Born with dappled, reptile-pattern fur, they were the first such births at the zoo in 16 years.

Their births were a coup, and the end of a complex reproduction saga involving an exotic, endangered and beautiful species of animal that experts call the ghost cat.

It was also a genetic home run: The zoo said the cubs’ genes, which come from outside the captive population, make them among the most valuable clouded leopards in North America.

“Genetically, they’re the most valuable animals outside their home range,” said Ken Lang, a zoo expert on the species, because their genes stem directly from the wild. “These are totally new genes.”

The births are thus a heavy responsibility. The precious cubs must be hand raised by the zoo’s staff to guarantee their survival. “It’s scary,” said Lang, the center’s mammal unit supervisor. “It’s a lot of pressure. . . . We haven’t had babies for 16 years.”

In addition, the births were the first in the official North American clouded leopard zoo population in six years, the zoo said. The zoo has 14 clouded leopards, including the newborns: two at the zoo in Washington, and 12 at the research center.

The clouded leopard is native to Southeast Asia, the zoo said. It is about the size of a medium-weight dog, with a small head, luminous eyes and long, white whiskers. It has weird black and tan spots that seem to blur into each other, huge paws and an extremely long tail.

It is an acrobatic climber and can walk on the underside of tree branches or vertically down a tree trunk, the zoo said. And it has unusually long, sharp teeth that resemble the fangs of a poisonous snake.

But the leopards are endangered in the wild and are hunted in Asia for their beautiful pelts.

The zoo had a successful breeding program for clouded leopards during the 1980s and early 1990s, but it was halted in 1993 because of fears of inbreeding among related leopards across the country.

The program proved difficult to resume. The zoo’s animal reproduction expert, JoGayle Howard, said zoos across the United States and in Thailand found that when a male and a female were put together to breed, the larger male often would pounce on the female and kill her with a fatal bite to the back of the neck.

When a female did become pregnant, she often killed her cubs accidentally or intentionally, Howard said.

Experimentation eventually suggested that if a male and female were raised together, the male would not kill the female once they reached adulthood and mated, Howard said. “You want to put the male in with the female, pair them up as early as possible,” she said.

Hannibal and Jao Chu were such a pair. They were imported from Thailand last year, Howard said, and reached puberty together. Lang said experts believed the two mated several months ago at the center but were not certain. About a week ago, curators realized Jao Chu looked as if she might be pregnant.

Several days ago, she was placed on a pregnancy watch, and when she turned down her usual snack of two dead mice Monday morning, Lang said they figured she was pregnant.

Early yesterday, she vanished from the area of her enclosure that is monitored by video cameras, and about 1:30 a.m., Lang was summoned from his home on the center grounds. He unlocked the door of the leopard’s enclosure, entered and spotted her in the corner with the two cubs. He left immediately.

“I didn’t want to get her upset,” he said. “First-time mother. You never know what they’re going to do with the babies.” His reaction was excitement — and fear.

“It’s excitement that she finally had them, and she really was pregnant,” he said. “And then it’s the fear, ‘Oh my God, are they alive? Are we going to be able to get them out okay?’ And now, you’re the caregiver. . . . You become Mom.”

He said he was worried because the cubs were on a concrete floor and could become chilled. He wanted to get them into the warm incubator as soon as possible.

He said he gathered other curators and, armed with a net, three people reentered the enclosure, separated the cubs from the mother, who backed off, and gathered up the babies.

The cubs were taken to the center’s veterinary hospital, examined and found to be a little cold but in good health. One weighed 258 grams (about half a pound), the other 270 grams. Their sexes could not immediately be determined. They will be raised on formula.

Later yesterday, they appeared robust and squeaked loudly as Lang, in green scrubs and rubber gloves, took their temperatures and bottle fed them. “Atta boy,” he said, as one cub drained the small bottle. “Big drink.”

When Lang was finished, he turned out the lights in the room and locked the big steel door, where there was a sign that read: “Quarantine.”


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