Posts Tagged With: chimpanzee

BIRTHDAY BASH! Dallas Zoo celebrates chimp & otter’s 1st birthdays

 

Chimp Mshindi at 6 months old/Keeper Will Bookwalter

Chimp Mshindi at 6 months old/Keeper Will Bookwalter

Born one day apart, guest favorites Mshindi & Tasanee turn one

WHAT: Our babies are growing up! The Dallas Zoo is throwing a first birthday party bash for chimp Mshindi and Asian small-clawed otter Tasanee tomorrow (Saturday, Jan. 24), and everyone’s invited. The first 100 guests at both habitats will receive a free mini-cake from Nothing Bundt Cakes. Join us at 10 a.m. at the decorated Kimberly-Clark Chimpanzee Forest, as we sing “Happy Birthday” while Mshindi and his eight troop members tear into a massive, chimp face-shaped birthday cake filled with his favorite treats. Shortly after at 10:45 a.m. at the Betty Moroney Norsworthy Otter Outpost, we’ll sing to Tasanee as she and her parents dive into her floating sashimi boat loaded with her favorite food.

Otter Tasanee at 3 months old gets the hang of swimming/Dallas Zoo

Otter Tasanee at 3 months old gets the hang of swimming/Dallas Zoo

WHEN: Saturday, Jan. 24. Schedule:

10 a.m.: Birthday cake presentation at Chimpanzee Forest in Wilds of Africa

10:45 a.m.: Birthday cake presentation at Otter Outpost in ZooNorth

WHERE: 650 S. R.L. Thornton Freeway

WHY: Born just one day apart, Mshindi and Tasanee’s births have been major success stories for their endangered species. Asian small-clawed otter Tasanee beat the odds to survive; she needed more than 100 days of devoted care from her keepers, because single otter pups usually do not make it. Chimp Mshindi has been an integral addition to the now nine-member troop. He’s the first baby since his brother, Kona, arrived in 2009, adding a positive dynamic to the troop’s complex social structure.

 

 

 

Categories: Africa, Chimpanzee, Conservation, Enrichment, Events, Media, Otter | Tags: , , , , , , , | Leave a comment

Goatscaping: Eating away a poison ivy nuisance

The guests are gone, the zoo is quiet – now it’s time to get to work. One by one, eight goats make their way into the 19,000-square-foot chimpanzee habitat.

With the chimps safely in their night quarters, the lights are left on for the goats, who’ll work into the morning. Their experimental task: eat all of the poison ivy that’s grown in the chimp and gorilla habitats.

To these nature’s lawnmowers, it’s just another green meal. The plant causes no harm to our primates or the goats, but it makes zookeepers’ jobs increasingly difficult. Preparing the habitats in the morning becomes a game of dodgeball as they try to avoid the toxic plants.

“They’re getting ivy all over their bodies,” said Keith Zdrojewski, mammal curator. “They’re out there wearing long-sleeved shirts and pants to trim the grass in 100-degree weather. It’s pretty cumbersome for everyone.”

The goats mow through the poison ivy with ease. “They’re an incredible species that can survive on a diet that other animals would starve on,” said Dr. Jan Raines, one of the Zoo’s veterinarians. “The compound in ivy that gives people allergic reactions is called urushiol. Goats lack a sensitivity to it. Their gastrointestinal tract is amazingly efficient at pulling every last nutrient out of anything they ingest.”

Zookeeper Ashley Orr’s personal goats are eating up our problem, saving us money by not having to hire a company to kill the ivy. And we’re doing it in an eco-friendly fashion. “This way, we’re eliminating chemicals from entering our animal’s habitats, and they’re leaving behind a clean natural fertilizer for the landscape,” Zdrojewski said.

When the sun rises, they’re back in their holding barn, waiting for the zoo to close again.

The goats enter the chimp habitat with owner and zookeeper, Ashley Orr.
The goats enter the chimp habitat with owner and zookeeper, Ashley Orr.
Dallas Zoo/Cathy Burkey
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Categories: Chimpanzee, Mammals, Nutrition, Veterinary Care, Zookeepers | Tags: , , , , , , , , , | Leave a comment

He ain’t heavy, he’s my brother

Big brother Kona, chimp troop make warm home for baby Mshindi

No mom or dad likes to see their baby grow up. Thankfully for chimpanzees, they get to be babies for quite a while.

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Dallas Zoo guest Matt Gomez took this incredible photo of little Mshindi, his brother Kona (right), and mom Ramona. Kona is taking Mshindi’s arm for one of their playtimes. Matt Gomez/Special to the Dallas Zoo

Born Jan. 26, Mshindi is the second baby for mom Ramona. He joins 5-year-old big brother Kona, along with seven other troop members in the Kimberly-Clark Chimpanzee Forest.

For two to three years, Mshindi will be completely dependent on Ramona for care. Don’t expect to see him running around the habitat on his own. For now, he remains safely on mom’s belly– or in the arms of his big bro. Kona’s recently taken to scooping up Mshindi, playing with him and even carrying him around the habitat and high up into the trees.

“Ramona controls a lot of the milestones. But with her second baby, she’s a little more relaxed this time around,” said Sarah Villarreal, mammal supervisor. “She’s allowed the baby to step off her belly and into the arms of Kona. Kona loves to climb to the top of the trees with Mshindi and just hang out.”

Kona takes off for a romp around the chimp habitat with his little brother, Mshindi, in tow. Matt Gomez/Special to the Dallas Zoo

For about five years, a white tuft of hair will remain on Mshindi’s bottom, distinguishing him as a young chimp. The tuft tells group members he’s a baby and they need to be careful. It also means for the next few years he can get away with just about anything.

“As the baby develops, there will be times when he’ll just go and take food from the alpha male and he will let him,” Villarreal said. “They’ll be very tolerant of the infant because they know he’s learning, and the whole troop works to raise the baby.”

With Kona’s tuft now beginning to thin out, he’ll have to start learning how to be a respectful member of the troop — and yes, no more stealing food from the adults. Going from the troop baby to big brother hasn’t been the easiest transition for Kona, but he’s been a great big brother.

“Kona was jealous at first. He would throw tantrums sometimes,” Villarreal said. “But now he’s doing well. It’s amazing to watch him hold his baby brother. But if Ramona ever gets nervous, she will take the baby back.”

Ramona used to be a lower-ranking female, but now holds a higher ranking status in the troop after birthing another baby. Her new status can cause some jealousy among the other females, but Villarreal says that’s how Mshindi learns the troop dynamic. “Around the baby, troop members will still fight,” she explains. “That’s how the baby learns what a troop is and what it’s about.”

Chimpanzees develop very slowly, so it could be years until Mshindi stops nursing. His big brother nursed until he was 4. You can track Mshindi’s development with the timeline below, which our keepers have used for decades to follow our baby chimps’ milestones:

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Zookeeper Will Bookwalter took this great closeup shot of little Mshindi. Will Bookwalter/Dallas Zoo

12-16 weeks: Reaches towards an object and grasps, shows coordination

12-16 weeks: Shows play face and laughs during tickling

16-20 weeks: Chews and swallows first piece of solid food

16-24 weeks: Starts to take first quadrupedal steps; climbs small branches

20-24 weeks: Takes first step

20-24 weeks: Mother-infant contact broken

20-24 weeks: Climbs up sapling or branch

26-52 weeks: Small amount of solid foods eaten

28-32 weeks: Attempts to groom another, inefficiently

64-68 weeks: Runs at and hits another infant aggressively

64-68 weeks: Reassures another in correct context

72-76 weeks: Grooms with adult technique

 

Check out this uber cute video of our little ones!

Categories: Africa, Chimpanzee, Exhibits and Experiences, Mammals | Tags: , , , , , , , | Leave a comment

There’s just no such thing as a ‘typical’ day for zoo vets

On any given day, the Dallas Zoo’s three veterinarians might work on a tiny frog who weighs a few grams and then examine an elephant that weighs 10,000 pounds. That’s the irony of “specializing” in zoo veterinary medicine: one must be a generalist for hundreds of mammal, bird, reptile, fish, and invertebrate species.

Vets must know how to recognize different digestive, vascular, and reproductive systems; infectious and chronic illnesses; pharmacological needs; and animal behaviors in order to develop courses of care.

MEDICATIONS: Administering drugs isn’t simple as picking up a ‘script from Walgreen’s. Zoo vets often have to improvise when calculating drug dosages, because pharmaceutical companies don’t publish formulations for every species. The vets know that a published dosage for a horse would be good for a zebra, or that antibiotics effective on lizards would probably work with snakes. Compounding pharmacies may be used to create concentrated volumes for large-animal needs.

“But you can’t just increase the dosage of some drugs because the animal is bigger,” explained Christopher J. Bonar, V.M.D., Dipl. A.C.Z.M., director of animal health. “Sometimes we have to do metabolic scaling to formulate dosages based on an animal’s metabolic rate. Large animals like rhinos have a slow metabolism.”

SPECIALTY EQUIPMENT: When necessary, veterinarians must be creative with equipment to accommodate everything from tiny poison dart frogs to long-necked giraffes. They’ve turned urinary catheters into endotracheal tubes. Anesthesia masks have been made from pop bottles and construction cones.

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Dr. Maren Connolly examines koala Tekin while he’s under anesthesia as part of his annual checkup. Dallas Zoo/Cathy Burkey

ANESTHESIA: Like with humans, putting an animal “under” and performing surgery are last resorts. That’s why zookeepers train animals to demonstrate behaviors that make it easier to draw blood, administer shots, and conduct exams.

There are a few times when anesthetizing an animal is risky – for the vets! Herpetologists noticed that a red spitting cobra wasn’t eating or defecating, and had a swollen abdomen. The snake had a history of kidney problems, common to this species. The challenge was to sedate the venomous snake.

“Our very skilled snake keepers helped on this one,” Bonar said. The dangerous end of the cobra was drawn into a plastic tube so the vets could pump gas to anesthetize it. “We inserted a tube into the trachea to ventilate it during surgery and confirmed that the snake had a renal tubular carcinoma. After testing the other kidney to make sure it was functioning well, we removed the affected kidney.”

BIRTH DAYS: It’s exciting when babies are born – or hatched. Newborn antelopes and other herd animals are often checked and tagged 48 hours after birth. Although recognizing newborns may seem simple, herd animals often deliver at the same time of year, and the babies look strikingly similar. Vets check the mother’s lactation and the baby’s suckle response and hydration. During difficult labors, vets may manually assist with breech births or perform C-sections.

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Keepers trained Ramona chimp to allow an ultrasound during her pregnancy to check on the fetus. Dallas Zoo/Cathy Burkey

Vets monitor hormone levels or perform ultrasounds for some expectant mothers, such as Marge warthog and Ramona chimpanzee. Both mothers were trained to allow vets or a veterinary ultrasonographer to apply a jelly-like substance to their bellies for the test to check the fetus’s health and estimate due dates. Ramona even learned to hold on to the bars of her bedroom to make the job a little easier. After babies are born, vets usually wait to do well-baby exams until mom is ready to eat away from the baby or share care with others in the group.

Zoo populations often use the same methods as humans to limit or facilitate pregnancies. Many animals are on birth control so the population doesn’t get out of control or inbreeding doesn’t occur. In cases where there is a need to increase the population or genetic diversity of a species in the Association of Zoos & Aquariums (AZA) Species Survival Program (SSP), vets may use assisted reproduction.

“We always prefer natural reproduction,” Bonar said. “Techniques that work with a horse or cow won’t necessarily work with a rhino or cheetah. We work with the SSPs and a company that does hormone analysis and makes reproductive recommendations for us. But basically we watch to see if the females are coming into estrus. Are the males fertile? Are the animals compatible? Sometimes absence makes the heart grow fonder, and we recommend a simple change in environment for a short time.”

Zoos with expertise in breeding certain species often serve as consultants. The Dallas Zoo advises on okapi breeding at other facilities.

Advanced Diagnostics: Bonar and his team of vets routinely test blood or tissue samples, but they often send them to more than a dozen pathology labs, each one specializing in a certain species or test. When an animal passes away; vets perform necropsies to determine the cause of death so that information can contribute to the body of knowledge among scientists and zoo professionals. When possible, tissue and bones are donated for educational purposes.

In the wild, many animals don’t exhibit obvious signs of illness because other members of its group may perceive it as weakness or because the animal may become easy prey. Diagnosing challenging cases may require the services of offsite computed-tomography (CT) or magnetic-resonance imaging (MRI) facilities.

Outside medical specialists allow the hospital team to extend their resources. The Dallas Zoo routinely works with specialists on cases requiring ophthalmic or dental surgery, CT or MRI scans, pathology results, and hoof trims. That’s why the Zoo is assembling a Medical Advisory Committee. The depth of knowledge of the Zoo’s veterinary team, combined with the expertise of several specialists, will help provide even better care.

Categories: Chimpanzee, Elephant, Giraffe, Mammals, Okapi, Reptiles and Amphibians, Veterinary Care | Tags: , , , , , , , , , , , , , , , , , | 2 Comments

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