A few days ago, pandas at the Toronto Zoo took full advantage of the cold weather having a BLAST playing in the snow!
Giant pandas are from the remote, mountainous regions of central China, in the Min Mountains and Qinling Mountains of the Sichuan, Shaanxi and Gansu provinces, where it often snows in the winter months. The pandas in Canada feel right at home in the cold. While the San Diego Pandas don't get any naturally cold weather, they do get a special delivery of snow a couple times a year and they know just what to do when it arrives!
In honor of the Giant Panda being taken off the Endangered Species List and down-listed to Vulnerable at the recent IUCN World Conservation Congress, here's a video I took in March 2012 of the small, but mighty, Gao Gao being, well, a Panda.
There has been a 17% increase in the Giant Panda population within the last decade. My panda t-shirt that says there are only 1,600 left in the wild is now wrong, with the count now believed to be over 2,000 pandas! They say the panda’s dramatic comeback is largely due to research-fueled conservation efforts in China and scientists around the world that have contributed to the effort, which includes researchers at San Diego Zoo Global, which includes me! I am very proud to have been a part of that team and hope some of what I contributed during my 5 years at the Panda Research Station helped the cause. GO PANDAS!
There are still threats to the Giant Panda, so the struggle, and research, is not over. Best of luck to the panda team in keeping the panda moving down the IUCN Red List!
This story has been floating around the interwebs for the past week or two and I understand why it keeps being re-posted on social media.... its seemingly hilarious!
Ai Hin, a 6 year old panda at the Chengdu Giant Panda Breeding Research Center, the same place some of our San Diego pandas now call home, is said to have faked a pregnancy to get special treatment, including more food, air conditioning and increased attention. Chengdu reported Ai Hin was showing signs of pregnancy in the form of reduced appetite, less mobility and a surge of progestational hormone. But, it could be possible she was pregnant but reabsorbed the fetus. Surges in hormones are hard to fake and it is fairly common for pandas to lose a pregnancy, reabsorbing the fetus so it appears as if there was no pregnancy at all. Reabsorption could happen because there is a fetal defect or death, the mother has a disease which affects her ability to properly care of the fetus, there is a hormonal disruption, or environmental conditions are not conducive to caring for the baby. At the San Diego Zoo, they have seen this phenomenon with the use of thermal imaging and ultra sound. Bai Yun was suspected to be carrying twins on more than one occasion but has only ever given birth to one cub. This kind of fetal reabsorption is called "prenatal litter pruning". The mechanism isn't exactly known but could be an adaptive result of pandas not being able to care for more than one cub in natural, wild conditions.
Who knows. Maybe Panda McLiar Pants wasn't lying after all but her body decided this just wasn't the time. She's only 6 and has never been a mother. Maybe she just wasn't ready yet!!
Su Lin, third cub to Bai Yun and second of the Bai & Gao Gao super team, has given birth to twins! This boy and girl pair are her second and third contributions to the panda gene pool.
Su Lin was one of the pandas I was trained on. From 2007 to 2010 I watched her grow from a newly weaned cub to a full grown, independent panda before being sent to China. All captive pandas are owned by China, on loan as part of a research agreement. Part of the agreement requires all pandas born to loaned research pandas to be returned to China when they turn 3. Su Lin's 3rd birthday, however, was only a matter of months after the Sichuan earthquake of 2008 which leveled much of the Wolong National Nature Reserve and the Panda Research Center where she was supposed to be sent. So, Su Lin stayed with us at the San Diego Zoo until she was 5 and traveled to China along side her sister Zhen Zhen shortly after her 3rd birthday.
Turns out twins might run in the family. This was actually Su Lin's second set of twins. Her first had one healthy cub and a still born. Her older half-sister, Hua Mei, has given birth to three sets of twins and Bai Yun, although none came to term, has been suspected to have been developing twins when vets did ultrasounds during pregnancy. In the wild, having twins isn't advantageous. The amount of energy it takes to raise two cubs far exceeds what mom is capable of providing so the panda mother is forced to pick the stronger cub to raise. Lucky for these ladies, they are part of breeding facilities equipped with all the "energy" needed to provide for both cubs.
It is so wonderful to see all the success of the San Diego Zoo's Panda Research Facility's breeding program. Not only have six cubs been born in the program but they have given birth to 14 cubs of their own! So many sets of twins really help them up their numbers.
My mission statement, of sorts, is I am a professional student saving the planet one carnivore at a time and a scientific review published today in Science (Volume 343) does a pretty good job of explaining why. Carnivores are really cool but the importance of keeping these species’ populations healthy is more important than because they’re badass.
Most of the members of the order Carnivora are at the top of the food chain in their ecosystem making them an integral part of the health and well-being of that ecosystem. And, since carnivores exist in almost every habitat on Earth, declines in these species can be seriously detrimental to the condition of our plant. Carnivores play an important role in regulating ecosystem function. Other species, both flora and fauna, rely on carnivores hunting, scavenging, leaving prey remains, etc. whether directly or indirectly. A decline in carnivores has some fairly unexpected effects including changes in biodiversity, disease, and even stream morphology.
Natural ecosystem balance has ebb and flow, but in recent ecological history the ebb is beating out the flow in regards to many carnivore populations. Factors such as human-animal conflict, habitat loss and depletion of prey due to over hunting are changing our planet’s carnivore populations and declines are causing declines in other essential species and increases in destructive ones. This review focused on seven of the 31 large mammalian species of Carnivora (above) which have documented trophic cascades (meaning the predator is responsible for the alteration traits of their prey within a food web – ie the Circle of Life) reporting on the effects each carnivore has on its individual ecosystem. Their conclusions, humans cannot replace carnivores in their role of preserving ecosystem balance and conservation efforts need to be made to prevent further loss or even extinction of such important biodiversity and ecosystem function maintenance species.
Big News from the San Diego Zoo! Yun Zi, the fifth cub mothered by Bai Yun and fourth to Gao Gao, will be following in the footsteps of his four siblings before him and making the journey back to his homeland next week. His arrival in China marks the beginning of his genetic contribution to the Panda species as a member of the breeding program. His siblings have had great success in the breeding program bringing more than 10 cubs into the world.
I am so proud of that little guy (well, not so little anymore). I was there when he was born and saw him almost every week until I moved to Texas. He is a gorgeous bear with a lot of personality and will be a great addition to the breeding program. I will miss him as I miss Mei Sheng, Su Lin and Zhen Zhen and hope that some day I might be able to make my own journey to China to visit.
The Wold Wildlife Foundation recently published video of pandas in the wild last July. Caught foraging on one of their over 100 camera traps spread throughout the Chinese forest, these pandas are only a few of the many animals that were documented, demonstrating the notion that by saving one animal you are actually saving many!
It is Chinese tradition to wait 100 days to name a baby panda. So to honor these bears' heritage, zoos around the world wait until their baby pandas are big and strong at 100 days old then name them in a traditional ceremony. And, today, Tuesday November 13, 2012, at 10am, the newest panda cub at the San Diego Zoo, born on my last day of work, was named! Xiao Liwu, which means "little gift," and is a gift to us and his species. Watch the naming ceremony below:
I can't believe its been 100 days since I worked at the San Diego Zoo. I miss it SO much!
After an auspicious start on Sunday, which began with an early breeding between giant pandas Bai Yun and Gao Gao, San Diego Zoo staff had planned to give our pandas a break of several hours to rest. After the high level of physical exertion associated with breeding attempts, rest periods help recharge the bears’ batteries. The pandas grab a quick snack and a catnap and wake up feeling refreshed.
Somewhat unusually, Gao Gao maintained a very high level of motivation after that first breeding, refusing to rest. He motored about his exhibit, bleating and checking the howdy gate. He grabbed an occasional drink or bite to eat but kept his focus on his mate. Bai Yun, for her part, kept close to that gate, rear-presenting and making it clear she would be happy to have Gao Gao with her again. In order to take advantage of their obviously high level of arousal, we opted to skip the break period and allow them access to one another sooner rather than later. It paid off. At 10:29 a.m., a second mating was achieved.
Staff was elated. Both bears were doing well, we had two matings under our belt, and it wasn’t even lunchtime yet. Despite the crazy weather (it was hailing on us at one point as we watched the bears wrestling in the drizzle), our charges seemed focused, strong, and willing. Surely now that they had managed to copulate twice, they would want to take a break, right?
Wrong. Maybe Gao Gao worried that Bai Yun might have weaker motivation the next day. Or maybe he was aware of his own tendency to be a little slower the day after breeding, feeling the effects of muscle fatigue and soreness. Or maybe he just likes his girlfriends covered in mud. For whatever reason, our boy just would not settle down! He continued to pace and bleat and paw at the gate when she was near. Bai Yun continued to bait him at the howdy gate.
It was decided that if the bears were up for it, we should let them have another shot. Again the gate was opened. For some time, the two worked the mating dance without success. The rain poured down some more, and the wind blew dried bamboo stems down from the stands surrounding the exhibits. And still they worked at it. Ultimately, they did not succeed, so we separated them again to reset the stage.
Almost comically, the bears again refused to leave each other alone. Really, Gao Gao? How can you be so undeterred by the mud and wind and rain? We are soaked through and exhausted just watching you. Didn’t anyone ever tell you that you are a senior bear? But I digress.
After much debate, we opted to go with Gao Gao. Up went the howdy gate, down came the rain. They interacted for another half hour or so, but again no mating was realized. Surely, they must be done for the day, we thought. They had to be tuckered out by now. But…well, I think you can guess where this is going!
His motivation still urgent, Gao Gao was letting us know he was still very interested in Bai Yun. Some of Bai Yun’s sexual behaviors were still building in intensity, which was encouraging. However, as she tired, Bai Yun had seemed more and more slow about adopting a posture of lordosis, in which she lowers her shoulders to the ground. Let’s face it: Gao Gao, for all his vigor, isn’t a very big boy. If our female doesn’t get low to the ground, all the vigor in the world just isn’t going to help.
Maybe this was a factor of her age (“Oh, my aching back”), or perhaps the weather conditions (“It’s muddy and wet down there”). For whatever reason, Bai Yun was not as cooperative as Gao Gao would have liked, and this was a contributing factor to their lack of success midday.
Persistence pays off, however. The fifth time(!) we paired our bears, Gao Gao managed to coax Bai Yun into the proper position. He finally accomplished what he had been working so hard to achieve for the last few hours. A third copulation was realized at 1:28 p.m.
Sunday afternoon, we sealed the howdy gate between the bears and left them with a heavy feed. Our hope was that they would fill their bellies and rest. Ideally, we would like to see one more mating out of this pair, not because three isn’t a good number (it is!), but because we are interested in seeing if we could spread out the timing of their breedings a bit to ensure we catch that egg when it is released. The precise timing of ovulation in the breeding cycle is still a bit of an enigma to us, and we would like to have a wide breeding window to maximize the likelihood of fertilization. So we decided to come in again on Monday and try again.
Did Bai Yun remember to get her shoulders down? Did Gao Gao wake up too tired to try again? Did the hail return to spice things up? What happened on Monday? You’ll have to wait until my next installment to fill in those blanks. Right now, I’m going to crawl under a (dry) warm blanket and catch up on some rest myself.
(Suzanne Hall is a senior research technician for the San Diego Zoo Institute for Conservation Research. Read this article and more about the San Diego Zoo pandas at The Giant Panda Blogs.)
I am a biologist and my life is crap!