One question we are asked frequently is “why do the bats have stuffed animals?” I would love to just say they are toys for the animals to play with (and often do when I am talking to small children), but the truth is that it is just more complicated than that.
First, I need to give you some background. There has been a lot of buzz in the media lately about the way zoos pair up animals for breeding. Many people are now aware that it is not done by chance and that we breed specifically to enhance and maintain as much genetic diversity as possible. What that means is that some animals are going to get more opportunities to breed than others, simply because of how heavily their families are represented within the captive population. The result is many animals are not recommended to breed and therefore have to be prevented from breeding by some method. The bats at the Oakland Zoo are on loan to us from Lubee Bat Conservancy where the majority of the fruit bat breeding happens in the US. Most of our bats have well represented genes in the captive population. The result is that Lubee gave us ALL male bats. That’s right; all 28 bats in our exhibit are boys, no babies here!
The second thing you need to understand is the concept of enrichment. AZA accredited zoos like the Oakland Zoo strive to provide animals with the optimal care and welfare. This means not only excellent medical care and nutritious food, but also enriched environments that allow animals to perform behaviors that they would naturally perform if they were living in the wild. This can take the form of large naturalistic exhibits like our sun bear or elephant exhibits, or it can take the form of a 50 foot tall enclosure that allows space for the large bats to fly. Sometimes it includes objects that may not be found in the wild, but still provide an opportunity for the animals to perform natural behaviors. This type of enrichment is most frequently seen with our primates. For example, in the wild, chimps will use twigs to collect termites from inside rotting logs. At the zoo, we will give the chimps other types of toys such as PVC tubes or Kongs with treats inside and they must use the twigs to retrieve them. Natural behavior from an unnatural object still results in increased welfare.
So now that we understand these two concepts, we put them together. Mostly our all male colony of bats works well, but for a few months out of each year, they go into breeding season and that causes some discord and a few disagreements in the group. Boys will be boys, right? They feel a need to chase each other out of territories, scent mark and generally just be cranky with each other. We discovered pretty quickly that the number of injuries in our bat colony increased each fall, coinciding with breeding season. While none of the injuries were serious, we still felt that we could improve their welfare if we reduced the number of injuries.
Enter the teddy bear! We hoped (and thankfully were right) that hanging stuffed animals in the exhibit would allow the bats the opportunity to take out their frustrations on something besides each other. Success! In fact, the concept was so successful (a 90% reduction in injuries) that keepers presented their findings at the 2010 Animal Behavior Management Alliance conference – winning an award for their efforts as well as becoming a cover article for their newsletter! The article has also been published in The Shape of Enrichment, an internationally known zoo trade publication focusing on enrichment for animals of all species.
Hanging stuffed animals in the bat exhibit allows our bats to perform the natural territorial behavior spurred by their hormones while preventing injuries within the colony. Natural behavior AND increased welfare from a simple child’s toy. While they may not look like a natural part of the exhibit, stuffed animals are an important component of the care we provide to our bats. Look around the zoo next time you visit and you may notice other exhibits with unusual enrichment items and now you know they serve some purpose that enhances the animals’ well-being.
Stuffed Animals in the Bat Exhibit, Why?
by Margaret Rousser | September 14th, 2012Stepping Through ZAM: Day 3, Savannah Module
by Volunteer Franette | March 8th, 2012
You think you know Lions? Well, so did I until tonight. This is the first class of the Savannah Module for those of us who have already taken either the Children’s Zoo or Rainforest Module, or both.
If you’ve been following along, you know I just finished with the Children’s Zoo training. Brand-new Zoo Ambassadors started this module last week and you can read about what they learned in my Day One and Day Two blogs for the Children’s Zoo under the Volunteering tab on this website.
We have two lions here at the Oakland Zoo, brother and sister, rescued from a bad situation in Texas when they were just cubs. Here’s a quiz to test your knowledge about African Lions:
1. Are Lions the largest cat on the planet? A) Yes B) No
2. Do Lions chew their food? A) Yes B) No
3. Does the color of a male Lion’s mane tell his age? A) Yes B) No
4. Are Lions loners? A) Yes B) No
5. Are male Lions the hunters in their pride? A) Yes B) No
If you answered A to all of the above, Stacy Smith, one of our Keepers, has news for you: None of those statements is true.
Lions are the second largest cats with Siberian Tigers being first. They live in grasslands or woodlands, not jungles, so I don’t know where they got the King of the Jungle rep. If anything, Tigers are the Kings, but that’s another story.
Lions, like all cats, have scissor-like teeth that cut food so they can swallow it without chewing. The color and size of the male lions’ manes are determined by their genes, not their age, and help protect their necks and make them look bigger and more threatening to other Lions.

Docent Carol Kerbel shows us that cats have pointed teeth for cutting and tearing instead of the flat molars for chewing that we have.
Unlike most other cats, Lions live in social groups, and the females are usually the hunters. They bring home the bacon, assisted by the males, but the males dine first. Cubs last. Go figure.
How can you tell a Lion is upset? Tail twitches, roaring and growling are hints that this is a Lion is not to be messed with. If you come across one lying on its back, with its ears flat and making puffing sounds…that one is mellow. A lion’s roar can travel five miles, which comes in handy when moms are calling their cubs home for dinner.
There are only about 20,000 Lions left in the wild because of hunting, poaching, and habitat loss. Keeper Stacy recommended we all go to www.lionconservationfund.org to learn more about how to help African Lions.
Mountain Lions here, like their African Cousins, hunt at the beginning and ends of the day, so we can protect them by staying off hiking trails at those times and keeping our pets protected to minimize human/Lion conflict.
The African Village
Next Lorraine Peters, one of our Primary Keepers, introduced us to the animals in our African Village.
Spotted Hyenas are fascinating and unique among the African species. Let’s see how much you already know about them:
1. Spotted Hyenas are scavenger animals because they have weak jaws.
A) Yes B) No
2. It’s easy to tell the males from the females by looking at them.
A) Yes B) No
3. Males dominate Hyena packs. A) Yes B) No
4. Hyenas laugh when they are: A) Amused B) Anxious
If you answered A for all of the above, you and I have a lot in common! But Lorraine set us straight. Hyenas are fearsome, fast hunters who can take down animals as large as wildebeests. Their jaws are more powerful than the Lions’, exerting up to 1200 pounds of pressure. And they are crafty: sometimes when they catch a large animal, they will hide it in water to cover up its smell so they can feast off it over a few days without losing it to others.
Hyenas get their reputation as scavengers because they eat the bones that other animals leave behind, but they are not like vultures: they prefer live prey and eat mostly meat.
It’s hard to tell the males from female hyenas by looking at them because both have similar-looking external sexual parts. Females dominate the males.
If you hear one of our hyenas laughing it is probably because a visitor is being too noisy: they make a laughing sound when they are worried agitated or upset, so keeping quiet is definitely the rule for visitors to our Hyena territory.
If you want to see our Hyena, look in one of the round plastic barrels, because that’s where they like to sleep in the daytime.

Hyenas always face out when they are in their dens so they can be the lookout for predators. Photo credit Steve Goodall
A Merry Mob of Meerkats
When Life Magazine first printed a photo of Meerkats I thought “Moon Mice,” they looked so strange. But Meerkat Manor brought them home to all of us so we feel we know all about them. Do you? Test yourself:
1.The black around Meerkat eyes is most like:
a) a raccoon’s b) a panda’s c) a football player’s
2. Meerkats are:
a) carnivores b) herbivores c) omnivores
3. Meerkats are conservation role models because:
a) they purify their own water b) they recycle their food c) they use solar energy for heat
4. Meerkats are most closely related to the:
a) Prairie Dog b) domestic cat c) mongoose
If you answered C to all of the above, you’ve been watching too much Animal Planet!
Flashmobs
Living in large groups we call “mobs,” Meerkats have a social structure that could make ants stand up and take notice. Each one has a vital role to play. The Sentries watch the sky and ground—if they see a hawk or snake, one call from them sends all the others underground. There are Babysitters and Wet Nurses and they work in shifts so that pups are protected while everyone gets a chance to loll around in the sun. Meerkats use their sharp claws to dig for insects and their favorite is scorpions. By eating those, they do all the other mammals a favor.
The black circles around their eyes protect them from glare, like the smudges football players wear. In the morning and late afternoon they stretch out on their backs in the sun to collect heat, because after dark when they are in their burrow, their body temperatures drop and they need this solar energy.
Did you know that most of the Meerkat collections in U.S. Zoos started with pups from one female who lived in our exhibit?
Verdant Vervets
Vervets, or Green Monkeys, mostly live in Africa although there’s a large population in the West Indies that started when some were brought there on slave ships. The ones in our Zoo came from St. Kitts via a research lab, but now they are safe with us. Ours are yellow, white and black but when the sun hits them just right they do have a bit of a greenish cast.
I’m not going to give you a quiz because these monkeys were new to me and might be to you.

Vervets are Old World Monkeys which use their tails for balance, not gripping, and have long faces like baboons. Photo credit Steve Goodall
Vervets eat insects—although ours are afraid of mealworms—birds, eggs and tropical fruit, but we also give them some veggies for the nutrients. Though they sleep in trees, they spend most of their time on the ground gathering food and hanging out with each other.
In Vervet society, the females rule their large troops (this is getting to be a theme among African animals, isn’t it?) and you can tell who’s dominant and who’s at the lower level of the society by how they hold their tails. Over their backs? Give them space. Dragging on the ground? They’ll be eating last. In our exhibit, the ones closest to the fence are on the lowest-rung of the Vervet ladder while the leaders get seats in the back where it is quieter and more private.
Monkey Talk
Lorraine told us that Vervets, like all primates, have a complex language of calls, body positions and behaviors that speak volumes to them, but mean nothing to most of us. For example, if one Vervet turns her back on another, that means trouble, so if we turn our back on one of them, that can seem very threatening, as can emulating the sounds they make.
Vervets have over 60 different calls. For example, their Leopard warning call will send the troop scurrying to the ends of branches where heavier Leopards can’t go. If one issues an Eagle call, they all run into the bushes. And a Snake warning? They stand their ground and get ready to fight it.
When we visit monkeys and apes in a Zoo we have to be careful that we don’t send out signals with our voices or body language that could upset the animals. It’s best to stand back a little, try not to make eye contact, and just be quiet so we can see them as they really are, and they can live calmly in their home here.
Homework tonight was an essay question on how pets are different from wild animals and what makes a good pet. Since I wrote on this during my last module, I decided to write about how to stop the pet trade in wild animals which is responsible for the death and abuse of thousands of animals every year. The heartbreaking events in Zanesville, Ohio in October, 2011, where nearly 50 beautiful wild animals had to be shot, was a vivid example of why we need laws preventing the sale and ownership of nondomesticated animals to private parties.
Saturday, we’re going out to the African Village to learn about these animals from experienced docents. What a treat.
See you then,
Change the Channel for Chimps!
by Margaret Rousser | February 1st, 2012In 2012 we are more enlightened by the plight of animal “actors” than ever before, at least we think we are. It turns out that some people still aren’t getting the message. This weekend is the biggest sporting event of the year, the Super Bowl! If you are anything like me, the commercials are sometimes even more exciting than the football game.
However, despite pleas from many well known animal welfare organizations, some companies, namely CareerBuilder.com, have once again produced advertisements using chimpanzee “actors.” This causes two major problems, the welfare (or lack of) for the individual “actor” and the more global problem of misrepresenting the status of chimps in the wild.
I’ve written about the problems of chimpanzee actors many times, but this is important and bears repeating. These animals are forcibly removed from their mothers as infants. They grow up living under dominance and constant threat of abuse. Chimpanzees need their mothers to teach them social skills so “actors” don’t learn normal chimp behavior. Finally their “career” is over by the time they reach 8-9 years old, not even teenagers, and then they are frequently discarded for the remaining 40-50 years of their lives often not able to be integrated with other chimps because they were not allowed to stay with their mothers long enough to learn how to interact with their own kind. For more information on what happens to chimpanzee “actors” click here.
Globally, seeing chimpanzees dressed up in human clothing and performing on TV and in films gives people the mistaken impression that chimps are not endangered. Two studies have confirmed this misconception in recent years and both were published in peer reviewed scientific journals. People simply don’t think that if an animal is on TV that it could be endangered.
So what can we do about it? Change the channel! I’m not suggesting that you don’t watch the Super Bowl, but I am suggesting that when you see a commercial with Chimpanzees in it, just change the channel for a few minutes, even if you are not one of the Nielsen Families. Share this strategy with your friends and family and encourage them to share it with their friends and families. If we can get the word out to as many people as possible, it WILL show up on the Nielsen Ratings which will send a message loud and clear. To learn how Nielsen Ratings work, click here. In addition, don’t watch the commercials online. YouTube tracks how many views each clip gets, don’t let them think you are watching it. Advertisers spend millions of dollars to create these commercials and millions more to get airtime during this event. Maybe if no one watches, they’ll get the picture!
Stepping Through ZAM: Days 10-12, Children’s Zoo Module
by Volunteer Franette | January 23rd, 2012
This is Franette Armstrong's last post of her Zoo Ambassador Training to become a docent in the Children's Zoo.
Day Ten found twenty-some very nervous ZAMs in search of an exit…because today is Presentation Day and none of us wants to go first.
But it wasn’t so bad. We each gave our 3-minute presentation of an assigned animal, then a class member was chosen to offer some comments, followed by constructive suggestions from Sarah Cramer, our teacher, or by an experienced docent. We all escaped with egos intact.
To celebrate, we had a wonderful potluck lunch where visible relief was as plentiful as the food. Many of the keepers and docents came to take part in this festive occasion: We are getting to know one another and becoming part of the “Zoo family.”
Unfortunately, we were also given our final exams to take home and answer using our notes and printed handouts (but no phone calls to each other). We have until next Friday morning to go to a website and post our answers on line before Sarah gets to work that day. Snooze, you lose.
Day Eleven: Stay Home and Work on Our Exams
I can’t share the test with you because Sarah might stop speaking to me, but it was only 3-4 pages of multiple-choice questions. Not too hard and actually kind of fun because it’s forcing me to re-read my notes and all the “Blue Sheets.” It’s a great chance to reacquaint myself with the many animals we have studied in the past five weeks and I needed this brush-up.
If you’d like to see some of the Blue Sheets, which provide comprehensive information written by our Zookeepers about the animals in the Zoo, go to Oaklandzoo.org and click on the tab that says “Animals.” They are there by taxonomic groups: Mammals, Reptiles, etc.
Day Twelve: Zoo Trivia and Graduation
Part of of our final exam was to study all the information about the Zoo itself so we can answer any question a visitor might ask. Where are restrooms? The strollers? When are the otters fed? Where can I get a band-aid? Where’s my child????
We formed small groups and competed against each other for Trivia points with Sarah awarding bonus points as the mood struck her and competition becoming more intense and more hilarious as the morning went on.
When Good Visitors Act Badly
The next activity: role playing what to do (and not do) if a visitor ever misbehaves, not that any ever will
The docents and Sarah got together and performed skits of potential situations we might encounter and our groups had to show different ways we would get the situation under control. We were falling down laughing at how good the docents were at deflecting everything we did so they could continue acting out. I certainly hope I never encounter visitors like them!
The whole point was to review all the ancillary aspects of being a docent: radio operation, lost-child procedures, controlling visitor behavior that’s unsafe or upsets the animals, plus Zoo rules and how to enforce them.
Graduation Isn’t the End
Finally, it was graduation time. We got our certificates and were each assigned a docent mentor to meet with several times over the next few weeks so we can prove we are ready to be turned loose in the Children’s Zoo. They will help us with behind-the-scenes mechanics, such as where to find the biofacts and puppets, and how to do a radio check, and they have a long list they have to go through to make sure every base is covered.
These are a few items on the checklist we have to pass:
~Demonstrate a working knowledge of animal facts for the majority animals in the Children’s Zoo.
~Provide appropriate answers to sensitive or difficult questions.
~Present information that is educational, entertaining, comprehensible and age-appropriate.
~Demonstrate working knowledge of radio protocols (such as lost child and emergency procedures).
And 16 more!
When they sign us off, we get our t-shirts and name badges and are free to move about the Children’s Zoo. Whew.
Will we be Docents after all this?
Not quite! Once we have graduated from all three modules and passed the Docent mentoring in each part of the Zoo, we then can take a test on all of it and if we pass, we enter the elite corps called Docent Council—currently 77 members strong. What does this get us? Well, the chance to do even more for the Zoo such as learn to drive the electric carts and do cart tours, perform in the Wildlife Theater, take positions on the Docent Board, and go on all kinds of interesting field trips to animal research projects in the Bay Area.
Becoming a Docent is a Very Big Deal. This one module required 39 hours of classroom and in-zoo instruction plus homework, plus docent mentoring. Some of our Docents have been with the Zoo over 20 years and volunteer their expertise several days a week—not to mention all that they do to help train us ZAMs. When you see a Docent or ZAM walking around the Zoo, tip your hat and realize that they are highly trained by the best, and highly committed to helping you appreciate everything our Zoo has to offer.
Do our animals deserve anything less?
More ZAM Training Coming Up
In January the Savannah Module will begin and I am already signed up. Stay tuned as we learn about zebra and elk, giraffes and lions…all the charismatic animals of the African plains. Can’t wait!
Until then, hope to see you in the Children’s Zoo.
Read about previous ZAM Training here: www.oaklandzoo.org/blog/category/volunteering/
PBI Leadership Camp — Blog 5
by Victor Alm | October 22nd, 2011Absolute Commitment – A Group blog
Victor Alm – Zoological Manager, Oakland Zoo
Patty Young – Cleveland Metroparks Zoo
Philip Fensterer – Oregon Zoo
Jennifer Funk – Pittsburgh Zoo
As we wrapped up our week out at the Tundra Buggy Lodge we spent our last full day in lecture bringing our time on the tundra full circle.
This was brought home to us as multiple polar bears circled our lodge while we learned about the daily and long term operations of Polar Bears International and what it means to be stewards of our planet. One definition of Stewardship is the careful management of something entrusted to one’s care. This is a very relevant definition and strikes to the major point of what is occurring on our planet due to climate change. We are stewards of this planet and the life and systems that operate on it. If we are not going to help then who is? Another major part of our day was conducting our webcast to our own institutions and families. This was a great opportunity to directly communicate with colleagues back home about our time at camp, what we learned, and describe our experiences. This was followed by a Skype with Robert Buchanan (President of PBI). He reminded us of why we came here and of our obligation to future generations.
Leaving camp we are now armed with the tools and knowledge we need to step out and create change. The first challenge we gave ourselves as leaders began at camp and was reducing our own carbon footprint for the week at the lodge. We took on the no shower eco-challenge. This allowed for the conservation of many resources while adding to the aroma and ambiance of the experience! The most encouraging and supportive part of this final day was getting the opportunity to meet with our Polar Bears International facilitators one on one. We used this time to finalize our forward action plans for change. Putting our thoughts on paper, then discussing them as a group helped them to really resonate with us. We are leaving the tundra this week feeling motivated and confident. We can make a change. We are committed to make a change. We will make a change!
PBI Leadership Camp — Blog 4
by Victor Alm | October 10th, 2011Touching the Taiga – Making Connections that Matter
Victor Alm – Oakland Zoo, Zoological Manager
Today we went out on the Tundra Buggy and took a drive to the transitional forest (Taiga); it borders the tundra where we have so far spent most of our time during leadership camp. On our way there, we were lucky enough to see a gray wolf along with an adult male caribou.
We were also allowed briefly off the buggy, as there were no polar bears in the area, and walked around to experience the landscape. It was incredible as the ground was very spongy and full of the most beautiful mosses, lichens, and cracks in the ground called frost heaves.
However, we are not just here to sight see but to experience the landscape that is used by the female polar bear, for creating maternal dens. The females do this by digging into low banks and ridges made of peat that supports small trees. The trees and their roots give stability to the den on the top as well as the hard layer of permafrost (ground that is continuously frozen) on the bottom. With warming temperatures in the arctic, there has been alteration of weather patterns creating a warmer drier environment that is more susceptible to fire and the melting of permafrost. Both of these changes effect the den of the polar bear, making them less stable and prone to collapse. This can kill bears or cause them to abandon their dens. This has the potential to cause even greater stress on the polar bear population near Churchill, which is already loosing numbers due to loss of their productive sea ice. On top of this, it has been shown that the melting of permafrost can release another type of trapped gas called methane, which can amplify the warming effects in the atmosphere already seen from increased carbon emissions.
However, there is still hope and simple things we can do to help such as taking public transportation or carpooling to work. By doing this, you can help reduce the amount of greenhouse gases, such as carbon, that are going into the atmosphere. When small actions are taken collectively, they can be very effective. But, if you want to cause a more lasting and meaningful change in the long-term, you should ask for higher fuel efficiency standards for our vehicles. This is just one way we can have meaningful impacts towards stabilizing the tundra and taiga ecosystems, polar bear populations, as well as the numerous other ecosystems and animals that face habitat alteration due to a warming climate.
Other examples have been seen with numerous local AAZK (American Association of Zoo Keepers) chapters: group tree planting or incentives for using home energy efficiency kits. Check out my next post coming soon which talks about our final day in leadership camp. Also, continue to follow our group blog from leadership camp
http://www.polarbearsinternational.org/programs/pbi-leadership-camps/groups/keeper-leadership-camp-1





















