Animal Stories

Animal Stories

3

Hello, Handsome Yun Zi!

Welcome back to the spotlight, Yun Zi!

It has been a couple of months, but I’m happy to report that giant panda Yun Zi is now on exhibit for guests to view. Sunday, May 13, was his first day back, and he was putting on quite a show for our lucky guests in the morning. A perfect Mother’s Day treat for our visiting mothers!

Since father Gao Gao was in that exhibit previously, Yun Zi spent the morning scent marking the entire exhibit. He also was running around and rolling around to show off and have fun. When the front viewing area was redone a couple of years ago, our keepers tried to keep panda youngsters in mind when they requested more climbing structures. Yun Zi is the perfect example of why that is so important for a young, growing panda. He was climbing, scent marking the tree and going all the way to the top to smell the air. It was really an amazing morning for our youngster!

Those who had not seen him in a while were shocked at how big Mr. Yun Zi has gotten. Currently, his weight is about 180 pounds, and he is looking like he is going to be rather tall as well. Since he is 2½ years old, he could potentially continue growing for a couple more years. But just like his parents, his weight can fluctuate with weather changes and different life changes (hormones). Many of our guests told me about being at the San Diego Zoo two years ago and seeing a little baby; they wondered what had happened to him. Just about all of them were astounded when I’d point to Yun Zi and say, “Here he is!”

If you get the chance, please come and visit him, and take a peak on the Panda Cam. As for mother Bai Yun, she has been moved into the north exhibit, which is currently closed to our guests, so that when we begin doing our thermal imaging on a regular basis she is easily accessible. Our first thermal imaging procedure has already taken place; Bai Yun cooperated beautifully, and we have nothing to report. Please remember that it can take a while for our researchers and vet staff to see anything that would indicate a pregnancy. Paws crossed!

Anastasia Horning is a panda narrator at the San Diego Zoo. Read her previous post, Panda Narrator at Safari Park.

0

The Last Ones?

Panamanian golden frog

If you sat next to me on the plane traveling home from Panama this past February, you probably thought that my tote bag was full of souvenirs from a grand, tropical vacation. Instead, I was carrying the carefully preserved and packaged bodies of endangered frogs from captive survival-assurance populations. This was a trip that required months of careful planning and lots of red tape in obtaining and using the complicated permits needed to transport wildlife samples. Far from being morbid, icky, or gross, these specimens were extremely valuable for scientific efforts to save amphibian species from extinction. So why would anyone willingly travel with dead frogs?

Does Allan's yellow tote bag hold hope for amphibian species?

To explain, I should tell you that I’m a veterinarian who specializes in pathology. Therefore, my day-to-day responsibilities are focused on using laboratory techniques, including necropsies (animal autopsies), to accurately diagnose disease in animals at the San Diego Zoo and the San Diego Zoo Safari Park as well as our field conservation programs. Through these activities, our Wildlife Disease Laboratories have a mission to remove disease as a roadblock to wildlife conservation. By bringing these deceased frogs to our laboratory and sleuthing out their parasites and disease problems, we hope to make useful recommendations that can help improve things like animal diets or aid veterinarians in selecting the very best treatments. Ultimately, this helps to ensure that the captive populations can be sustained and thrive until they can someday return to the wild.

Promoting the success of amphibian survival assurance populations is no trivial matter: more than one third of the world’s approximately 6,000 amphibian species are in decline because of introduced disease, loss of habitat, environmental change, and human exploitation. Although sometimes I get wrapped up in dry scientific and technical details, this group of frogs from Panama now in my bag really reminded me of why I do what I do.

Allan holds some of the carefully preserved frog specimens for study.

Among these specimens were species like the Panamanian golden frog, which soon may survive only in captive survival assurance populations, and the fringe-limbed tree frog, for which only a single individual is still known to exist. It is difficult to describe the feeling of holding what may be the last individuals of an entire species in your hand, but I can tell you that it hit hard for me, and I know that it is worse for friends and colleagues on the front lines of the amphibian decline who don’t have the luxury of retreating into the laboratory.

I am privileged to work for a unique organization that recognizes the importance of what might seem like an unusual scholarly activity. Collaborating with colleagues nationally and internationally really makes amphibian conservation happen! I also have the support of an amazing team in the Wildlife Disease Laboratories who will move mountains if they think it will help animals in need.

If you’d like to know more about the amphibian extinction crisis and what you can do to help, please visit the Amphibian Ark® online at www.amphibianark.org. Some of the most important actions for saving amphibian species, like protecting the environment and raising awareness of the plight of animals, can happen from within our homes.

Allan Pessier is a senior scientist for the Wildlife Disease Laboratories, San Diego Zoo Institute for Conservation Research.

1

Patience: A Porcine Virtue?

Our photographer caught one piglet at rest...for the moment!

At 2 p.m. on March 27, Goldie, a red river hog living in Nairobi Village at the San Diego Zoo Safari Park, delivered four healthy, rambunctious piglets. For four months, we had watched expectantly as Goldie’s belly had grown bigger and bigger (round even by pig standards!). The piglets, two boys and two girls, were instantly active. Red river hogs are naturally precocious, and these four are no exception. The boys, Baloo and Bagheera, take their names from The Jungle Book like their dad, Mowgli. The girls, Zamu and Zola, have Swahili names like their older sister, Lozi.

Anytime the four piglets are awake, they are in motion. Whether sparring and chasing, rooting and digging up their exhibit, or climbing over Mom and Dad, the little siblings are constantly busy. This much activity raises one question: how do the parents and big sister tolerate the four tiny tornadoes? The answer is with great patience: porcine patience.

This being her third litter, Goldie knows how to handle seemingly tireless piglets who want to eat all the time. Any time Goldie stops walking, the piglets latch on to suckle. Eventually, Goldie flops to her side to allow them to nurse. Older sister Lozi is turning out to be a terrific role model. She never snaps at her striped siblings, even when they steal food out from under her snout.

Father Mowgli is a paragon of patience; his calm, collected gait is hardly altered as the piglets dart between his legs. He tolerates the piglets’ constant pushing, shoving, and climbing. And it would seem the piglets are even learning to take it easy from him. Usually the last one to leave a comfortable bed in the morning, he is now joined by his black-and-orange offspring. Goldie and Lozi jolt awake at the sound of breakfast; Mowgli and kids lay sleepily in their hay a few minutes longer. It’s not uncommon to find the piglets nestled snugly against Dad…when they choose to slow down, that is.

Interested in all the activity at the red river hog exhibit? Visit the Safari Park and watch the piglets as they root, dig, forage, and even learn to show a little patience.

Matt Gelvin is a senior keeper at the San Diego Zoo Safari Park.

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Panda Narrator at Safari Park

Guests on a Rolling Safari get a unique view of the Park's lions!

One of the great benefits of working for San Diego Zoo Global is that it gives employees the opportunity to explore other positions in the organization. For some of us, we can go on loan to other departments to help out during busy times. Although I am a panda narrator at the Zoo, for about three years now during Spring Break weeks I have had the great opportunity to work at the Safari Park and help give Africa Tram Safari and Rolling Safari tours. The best part of this process is learning about the different conservation programs that we are doing on grounds at the Park and letting our guests know that by coming to the Park they have helped us in all of our endeavors.

On the Africa Tram Safari, some of the first animals our guests see are the South African cheetahs. The Park has 1,800 acres, so we have space for a cheetah breeding facility where we have welcomed over 130 cheetah births. Many of our cheetahs born here become ambassadors for their species and go to other zoos to help bring awareness to their plight in the wild.

Southern white rhinos can roam far and wide at the Safari Park.

One of the most famous animals at the Park is the southern white rhino. In the early 1900s, the rhinos were hunted for their horns to the point where there were less than 500. For years, the practice in zoos was to put a male and a female rhino together and wait for them to breed. We now know that southern white rhinos are social animals, and the females like to be in a herd to help protect their babies. They won’t even come into heat unless they have that social group! Right now we have a male at the Park chasing the girls around, trying to court. The funniest thing about these animals is that if a male wants to court a female, he has to get the approval of the rest of the herd!

On the Rolling Safari Tours, our guests get to ride on a Segway X2 while getting to see the Asian animals that are not out for general viewing, such as the greater one-horned rhino, Przewalski’s horse (an extremely rare wild horse), Indian gaur (one of the few wild cattle left), and the Arabian oryx (an animal that was extinct in the wild but was brought back due, in part, to the Safari Park’s breeding efforts).

Taking a Safari Park tour is a great way to really see how involved San Diego Zoo Global is with conservation. Every tour lets you get extra information about what we do, our mission, and how you have helped and can continue to help as you leave the Park. I think the most exciting thing for some is seeing the new babies born. Since the Park opened in 1972, over 20,000 animals have been born here, and we help the scientific community by sharing our knowledge of animal behavior, successful techniques to secure breeding, and successful animal management.

If you have the time, please come check out the Zoo’s sister facility, the Safari Park. Watch these animals interact with each other in the large, open exhibits, and see animal behavior like you’ve never seen before.

Anastasia Horning is a panda narrator at the San Diego Zoo. Read her previous post, Our Growing Takin Calves.

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Green Woodhoopoe: Quirky or Clever?

Last week I wrote about two green woodhoopoes that had a curious behavior of feeding other birds (see post Green Woodhoopoe: Nature’s Room Service) Well, I have another story for you; this one involves another male green woodhoopoe feeding another bird that did not want to be fed!

A few weeks ago, my coworker Mark was tossing bugs to a few of the insect eaters in Scripps Aviary at the San Diego Zoo. He had the usual line of characters waiting for a cricket to be tossed their way: the long-tailed hornbill was patiently perched, the white-crowned shrikes made their boisterous appearance, and the racket-tailed roller was sulking on her branch. All was going well when suddenly the woodhoopoe male landed in the crowd of gathered birds. He already had a cricket in his mouth, so Mark could only guess that he might have been looking for his mate to feed. Instead of finding his mate, though, the woodhoopoe inadvertently landed next to the racket-tailed roller. Surprised, the roller turned, opened her mouth, and prepared to roundly scold the woodhoopoe. Only she never got that far—she was interrupted. Before she could berate him, the woodhoopoe had deftly shoved the cricket into her gaping mouth, flown away, and (probably) congratulated himself on a job well done!

Okay, enough of the anecdotes, what’s really going on here? Are green woodhoopoes just oddly obsessed with feeding other animals? The evidence to me suggests “yes!” But there may be a reason nature has given woodhoopoes this quirky characteristic. Woodhoopoes are cooperative breeders; this means that a group of 4 to 8 woodhoopoes (sometimes up to 14 individuals) helps to raise the offspring of just the dominant male and female of the group. Who are these helpers? Frequently, the helpers are the offspring of the breeding male and female. In the wild, the tree-cavity nests woodhoopoes need can be hard to come by. With a lack of nests available, many woodhoopoes help to raise their siblings instead of starting their own family. The helpers may not have the genetic success of breeding, but they do help to increase the success of their genes if they improve the survival rate of their brothers and sisters. As time passes, the helpers may inherit a breeding position from their parents or they may strike out on their own and try to find a mate and a nest.

You can probably guess by now why woodhoopoes have a tendency to feed other birds: these helpers bring a constant supply of food to their siblings! Feeding birds that are neither their offspring nor their mate is not just a quirky characteristic of the green woodhoopoe but also a means of their survival. How cool!

Mike Grue is a senior keeper at the San Diego Zoo.

2

Condor Chick: First Health Exam

Saticoy at 45 days old

On April 23, California condor chick Saticoy received its first health exam. We normally conduct this exam at around 45 days of age. The goal was to obtain a blood sample for our labs, administer a vaccine for West Nile virus, inject a microchip for identification, and weigh Saticoy.

The first step in this process is to separate the parents from the chick. Of course, the parents (father Sisquoc and mother Shatash) don’t want any invaders in the nest and do their best to defend the chick and keep it safe, as all good parents do. Adjacent to the flight pen, we have a shift pen, used to safely and calmly move large or dangerous animals from one area to another. We offer all of the condors’ diet in the shift pen, so Sisquoc and Shatash are very comfortable entering it for every meal. We shifted Sisquoc into the pen and kept him there until after the exam. From his shift pen, he cannot see the nest area, so he was unaware that we were even in his nest, thus keeping him very calm. He ate and waited patiently until he had access back into his flight pen.

Shatash was not shifted but instead was able to see us go into her nest. We posted one keeper in the nest entryway to keep Shatash out while another keeper entered the nest and covered little Saticoy with a towel. This is the first time that Saticoy had ever seen a person and was understandably nervous and defensive, hissing and lunging at the intruder. Once under the cover of the towel, Saticoy calmed down. The chick was then brought into the adjoining vestibule where our veterinarian staff was waiting.

First, the veterinarian obtained a blood sample from Saticoy’s leg. This sample was sent to the lab to make sure the chick is healthy. Also, our geneticists can determine if Saticoy is male or female from this sample. Next, a vaccine for West Nile virus was administered. This disease originated in Africa and was accidently introduced to North America by humans. North American animals, including condors, usually don’t have a natural immune response to the virus, so we are trying to give all chicks a head start. A microchip was injected under Saticoy’s skin. This chip is a form of identification. It’s the same kind of chip you can get for your dog or cat at the veterinarian. The veterinarian then gave a quick health assessment, checking Saticoy’s eyes, nares (nostrils), beak, feet, legs, wings, and abdomen. Lastly, we weighed Saticoy to make sure the chick was growing on schedule.

While the exam took place, a third keeper was able to enter the nest to clean the camera domes and make sure there were no hazards in the nest cavity. The whole exam, from capture to release, took only seven minutes!

Once the exam was over, Saticoy was returned to the nest, and Shatash was allowed to approach and check on her chick. As previously mentioned, Saticoy was rightfully disturbed by this process, despite our best intentions to minimize stress. Although we feel bad that Saticoy was so nervous, it is actually good for the chick that it was not comfortable in our presence. We have to keep in mind that we don’t want Saticoy to become accustomed to or feel reassured by humans; we want the chick to be a wild condor, uninterested and wary of humans, so that it may someday fly free in California, Arizona, or Mexico. Condors that show an affinity for humans seldom survive in the wild. For several minutes, Saticoy showed defensive posture, hissing at everything, even Mother.

Shatash slowly approached her chick and nervously preened it, eventually soothing it. That is the reason we shifted only one parent; we wanted the other parent present to calm the chick after the exam. About 10 minutes later, Saticoy was showing proper begging behavior, resulting in a feeding session from Shatash. With everyone appearing calmer, Sisquoc was let out of his shift pen. Approximately 20 minutes after that, he also went in to feed Saticoy. If he was alerted to our presence and was upset, he would have immediately entered the nest to check on his chick.

So far, the health exam looks to have been extremely successful. The blood work showed that Saticoy is healthy, and the veterinarian’s initial inspection looked great. The chick’s eyes and nares were clear, the feet, legs, and wings were solid, and vitality was strong. Saticoy weighed 7.7 pounds (3.55 kilograms) and was approximately the size of a bowling ball. Lastly, today we received the sex results from the Genetics Lab: Saticoy is a boy!

Ron Webb is a senior keeper at the San Diego Zoo Safari Park. Read Ron’s previous post, Condor Chick: 30 to 45 Days. Watch the chick daily on Condor Cam!

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Our Growing Takin Calves

For many of our guests who come through the San Diego Zoo’s Panda Trek, this is the first time they’ve encountered a Sichuan takin. For some, the first reaction is that takins are a type of ox or elk, and guests become so surprised when they find out that this animal is from the same area of China as the giant panda. Sometimes when I walk down there in the morning and talk to some of our guests, I try to emphasize the great work we have done with breeding these animals and that they also play an important role in the ecosystem of the Sichuan mountains.

I honestly cannot think of a better representation of how beautiful these animals are than with our two youngest takins, Mei Long (Beautiful Dragon) and Bing Long (Ice Dragon) (see post Our Growing Takin Herd). For most of the morning, these almost-three-month-old takins are running around each other and jumping up and down the rock wall they have for enrichment. You really get to see them in action and see their abilities to climb in this enclosure. The babies are only about a week apart in age and are very close in weight; the only way I can really tell the difference is to look at their forehead: Bing Long has a blonde tuft of his forehead while Mei Long has, for now, a solid coat. The babies will nurse from their mothers for an average of seven to eight months but can start to mouth hay and pellets after being a couple of weeks old.

Every morning, our keepers clean the exhibits and are working on training the individual takins to go onto a scale for weights. Our keepers also look the takins over to make sure everybody is healthy and there are no injuries; having horns comes with some liabilities! The keepers then move them access to the corral, barn, or upper hillside so that they can clean the exhibit safely and in peace. The takins have a nice pool up front to rest in or cool off on hot days, and the babies love to walk into the pool and check it out.

These babies won’t stay small for long, so we hope to see you all come to see them soon!

Anastasia Horning is a panda narrator at the San Diego Zoo. Read her previous post, Yun Zi Surpasses Dad.

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Yun Zi Training

Yun Zi: What a quick learner!

I still cannot believe how big panda youngster Yun Zi is whenever I see him. He is by far one of our fastest growing cubs! He impresses me every day with how smart he is. And he teaches me patience when he would rather play than train.

The bears receive data points when they can hear a tone during a hearing study session. On April 19, Yun Zi correctly stationed when he needed to and touched his nose to the red circle when he heard a tone played, receiving his first data sound point during the hearing study. This may seem like a small feat, but he has been training for over a year for this study! I am very proud that he is coming along nicely with the training, and it will be even more exciting when we have a full range of data on him.

Never fret, Yun Zi fans, he will be on exhibit soon and back to redecorating. We don’t have a set date yet, as that depends on Bai Yun and when she wants her privacy. Yun Zi is very spoiled where he is right now, off exhibit, and spends a lot of time close to his keepers. So please be patient with us keepers, as we only do what is best for all of our animals to keep them happy.

Jen Becerra is a senior keeper at the San Diego Zoo. Read her previous post, What is Yun Zi Doing?

3

Butterfly Watching

WOO HOO! Butterflies are back! Spring is in the air, plants are blooming, and I saw my first two monarchs in my courtyard last week!

As a zookeeper, I’ve worked with many species during my career. I’ve always been concerned about wildlife and habitats and how vitally important it is to conserve both, as each is dependent on the other for survival. But when I started working in the San Diego Zoo’s Entomology Department, it really hit me. Working with invertebrates up close opened my eyes to how important conservation, and education, is to our survival…and theirs.

The population of one of my favorite animals, the monarch butterfly, has seriously declined in the last few years. While they get food in the form of nectar from flowers, they perform the critical act of pollination and thus are important for the survival of plants and the potential production of fruits, nuts, and vegetables. The best effort to help this beautiful butterfly comes by planting native milkweed, their host plant, in our backyards and gardens. While it might seem like a small act, each of us really can make a difference.

Behind our Insect House in the Zoo’s Discovery Outpost is a small flower garden containing several plants for attracting butterflies. I had always wished I could do something similar in my own home, but I live in a very small condo with an even smaller garden space. What space I have is planted with a lot of succulents. But last year, I decided a small spot is better than none and planted six milkweed plants in the hope of attracting monarch butterflies. While I didn’t ask, or expect, help from my neighbors, I did let everyone know what I was doing and how important it was and asked all to help “monitor” the new plants.

Within a few days, we had a number of butterfly sightings. We saw females laying eggs on the plants and later on watched as the caterpillars started eating them. What joy at watching all the butterflies alighting on the plants, going from one plant to another! One of the unexpected perks was how excited my neighbors became when the monarchs started arriving. It was quite surprising! Interest really increased when we spotted the caterpillars. Then we started comparing notes on how many caterpillars we saw, and before we knew it we started having “happy hours” to compare notes on our new neighbors. What a blast! Our complex is small, and we all know each other, but having a new butterfly garden created a good reason to actually stop and visit each other. And that led to several happy hours and lots of laughter during the season. But not to be lost in all this excitement is the fact we started a new way station for our insect friends, and I hope this will help increase their numbers.

Regardless of how much space you have, you can help, too. It’s a great teaching tool for children about how important we all are and how important it is to save habitat for our animal friends. If you don’t have any children, you can always have a happy hour with your neighbors.

If you decide to plant a butterfly garden for monarchs, be sure to use native milkweed rather than tropical milkweed, which is lasting longer and longer in our warmer climate and is encouraging monarchs to “stay out too late.” They need to be on their way to an overwintering site by fall, and using a native species such as Asclepias fasicularis ensures the plant dies back after the first cold snap.

I will leave you with the story of the atala butterfly Eumaeus atala. On Key Biscayne in Florida, this endangered butterfly’s range was restricted to the northern end. There was suitable habitat in the southern region, but it was thought to be inaccessible to the butterfly due to development throughout the central portion. The host plant for this species, however, was a favored plant for backyard gardens; enough people planted it to create a bridge for the butterfly to reach the southern edge and new habitat, where it is now established. Thus, the beauty of citizen science and butterfly gardens!

Barbara Boon is a senior keeper at the San Diego Zoo.

Note: The Xerces Society for Invertebrate Conservation provides native seed, including native milkweed, to interested parties.

14

Yun Zi Surpasses Dad

Yun Zi explores December's snow.

I know many of our San Diego Zoo guests have missed seeing our youngest panda, Yun Zi. Rest assured that he is doing just fine and is still here at the Zoo! Yun Zi has access to our north exhibit during the day, and in the evenings he goes into a set of bedrooms that have sunrooms in case he feels the need to get some fresh air.

Believe it or not, the bears really don’t mind being off exhibit and in the back with keepers. Yun Zi enjoys watching the keepers work, make enrichment, and prep diets for the pandas. He definitely takes after his father, Gao Gao, in the respect: Gao Gao also enjoys the quiet environment, so being in the back with keepers is a nice change for him.

Yun Zi is growing very fast and has officially surpassed his father’s weight. On average, he is anywhere from 4 to 6 pounds (2 to 3 kilograms) larger than his dad, putting him around 174 to 176 pounds (78.9 to 79.8 kilograms). Our little Yun Zi is growing so fast and is becoming a very impressive-looking bear. Through different phases of his development he has taken after his siblings, and for right now he has long legs like his sister Zhen Zhen.

Keepers are training him to perform different behaviors, and for the most part he is eager to learn. Currently he has been working on extending his arm out for blood draws, which will help keepers and vets maintain his good health. There is no official word on moving him into the front viewing area or opening the north exhibit at this time, but check the blogs periodically for updates!

Anastasia Horning is a panda narrator at the San Diego Zoo. Read her previous post, Panda Pregnancy?