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About Author: Beth McDonald

Posts by Beth McDonald

13

Treasures for Lioness Tango

Tango check out one of her birthday presents.

Happy birthday, Tango! Our oldest lion turned 20 on August 12, 2012, and is doing great.

It was hard to pick which of Tango’s many treasures we should offer her on her big day. Our big cat fans already know she loves her bones and many rope toys, but she also loves pumpkins. Yes, pumpkins! She responds to them in the same manner she does to ropes and bones.

We recently placed one on exhibit for her. Once she spotted it out front, she went right for it and carried it back to her bed, where she likes to keep her treasures. She also has a fire hose toy, which, of course, always ends up in one of her “beds.” She collects boxes as well. This summer we have been putting more beds around her exhibit. Currently she has been favoring the bed in her grass area. She carries her treasures around with her from bed to bed, depending on the time of day and her preference.

A new rope toy for Tango!

We also have been playing tug-o-war with her. There is one rope toy in particular she loves to tug on. We have a special chute in her door that allows us to safely play tug-o-war with her. She gets very excited and vocal, chattering away while we put her rope in place. She continues to talk while she’s playing and after she wins. Tango always wins. I have to admit that it is not much of a war when playing with Tango—she is super strong for her old age! Tango uses her whole body to tug, which gives her great exercise that strengthens her muscles.

Since it was hard to pick just one of Tango’s treasures to give on her birthday, we offered her a birthday box containing a rope toy, her bone, and as many ropes as she could carry! Tango had a great day, moving from bed to bed with her treasures. The hardest part of her day was deciding which treasure to take where!

Beth McDonald is a senior keeper at the San Diego Zoo. Read her previous post, Lioness Tango: A Girl and Her Toys.

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Lioness Tango: A Girl and Her Toys

Golden girl Tango

Read Beth’s previous post, Lioness Tango: One of a Kind

Tango is a very playful lion, especially considering she is 19 years old. Her current most-prized possession is her rope toy. When she sees it, she gets so excited. She carries it around with pride, and she always keeps it at her side. If we hide it, she finds it and brings it back to her bed. Tango gets bones several times a week, and even they come in a distant second behind her rope toy. Some days we put her bone or her rope toy or both in her bedroom; she carries out onto exhibit whichever item she wants the most that day. Some days she picks her bone, but most days she picks her rope toy. If both are in her bedroom, we leave the door open, and she goes out with her first pick and takes it to her bed, puts it down, then comes back to get her second pick and takes it to her bed.

She also enjoys batting around her ball. Tango takes her ball to the lower side of her exhibit, lies down, and uses her paw to roll the ball up, then she waits for it to roll back down, then she bats it back up, then waits for it to come back down, etc.

We strive to stimulate as many natural behaviors as possible, and although we may use unnatural things like her rope toy and ball, we can still bring out those natural behaviors. Just a few examples include hiding her rope toy in her exhibit to stimulate hunting and nesting behaviors. Not all hunting behaviors are about food. Lions hunt for the best territory, or they hunt for the most shade-providing tree to sleep under. We use different scents like perfumes or spices to stimulate her sense of smell, and we change around her environment to stimulate her visually.

Tango emerges from her cave bed.

Tango is all about her hay bed. She usually has two beds in her exhibit: her main bed, back in her cave, and her front bed, which is closer to the viewing area. Tango prefers to chew on her bone in her cave bed. Anything of value to her she collects and brings to her main bed. One day I saw her rearranging all of her collectables. Her ball was to the left, but she didn’t want it over there, so she moved it to her right side. Then she moved her rope toy in front of her to use as a pillow. Her bone was to the right, but she wanted it to the left. She looked over her bed and then started rearranging again. She moved her rope toy up a little, maybe a foot, and after a little more adjusting, though she had no intention of doing anything with these items right then, she had her bed arranged exactly how she wanted it. Then she went to sleep.

Beth McDonald is a senior keeper at the San Diego Zoo.

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Lioness Tango: One of a Kind

Tango, our Transvaal lion, is 19 years old. Lions live for around 20 years in zoos, which makes Tango an elderly lioness. She and her sister, Mweezi, were born at the San Diego Zoo on August 12, 1992 (see Golden Girls in Their Golden Years).  Tango and Mweezi were their own pride for almost 10 years until, sadly, Mweezi passed away in July 2009.  As lions live in prides, we needed to give Tango extra care and attention to fill the void left by the loss of her sister.

One instinctual lion characteristic is its roar. Lions use their roar as one form of communication. It identifies individuals, strengthens the pride’s bond, and lets other animals know of the pride’s domain. After Mweezi’s passing, Tango’s roar became a little shorter and a little weaker. We suspected that it may be because her roar was going unanswered. Hali O’Connor is Tango’s favorite keeper; she takes care of her five days a week. Tango and Hali have a very strong bond, so Hali started answering Tango’s call with a roar of her own. Hali and Tango roared together every day, and we started to notice that Tango’s roar was becoming longer and stronger. Soon, Tango’s calls had returned to the roar that she used to communicate with Mweezi. To this day, anytime Tango calls, we answer.

Aside from roaring, Tango loves to vocalize. She grumbles while she chews on her bone, when we talk to her, when she’s showing affection (rubbing her scent glands on the door where we are standing), when she is grooming her rope toy, and when she’s sitting in a fluffy bed. I could go on forever, but we’ll just say she is a very vocal cat! One day Tango and I were talking, and she started falling asleep as she was talking to me. I thought “she’s talking her self to sleep!” Tango is one of the most comical cats I have ever worked with. She is truly one of a kind.

I’ll share more about Tango and her wonderful personality in a future post. There is much to share about this beautiful cat!

Beth McDonald is a senior keeper at the San Diego Zoo. Read her previous post, Langur Name Revealed.

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Langur Name Revealed

Zoli and her mother

THANK YOU, EVERYONE, FOR VOTING.

We have been so excited to learn the results of all your votes (see post Name the Langur). It looks like the name Zoli is the winner by a landslide! It received 216 votes (the names Kayla and Kalani received 37 and 38 votes, respectively—a close call for second place.) We even got 71 comments on the San Diego Zoo’s Facebook page about the contest.

Little Zoli is doing great, and since the weather has been warmer, she is exploring the outdoor exhibit. All the silvered leaf langur babies are having a great time climbing to the very top of their exhibit, then just letting go, using the trees as a trampoline.

I am so thankful to all of you for putting Zoe into your thoughts. I think Zoe would be greatly honored to know that her memory lives on in Zoli. Thank you.

Beth McDonald is a senior keeper at the San Diego Zoo.

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Name the Langur

Help us name this little langur!

Our youngest silvered leaf langur was born on October 14, 2009, to father Aden and mother LiLi. She is the third baby born in this troop (see Langurs: From Orange to Silver). I have been referring to her as “Teeny-Tiny Baby,” because she was the smallest of the three babies at birth. When she was born, the other youngsters, Bala and Aluna, were very interested in the new addition.

Female silvered leaf langurs help each other care for the young; Bala and Aluna were no exceptions. They tried to hold the baby and hug her, but LiLi would not allow them to care for the little one on their own as they were just babies themselves. The young females were only allowed to greet her. Female langurs greet each other by doing what looks similar to hugging. However, when Zoe, another adult female, was caring for Teeny-Tiny Baby, she let Bala sneak in and hold Teeny for a while. Bala held Teeny-Tiny just like she had seen the adults do (with the baby clutching the stomach of the adult), but because Bala was still small herself, the pair kept tipping over! So Zoe held Teeny-Tiny’s hand to help them stay upright. Once LiLi realized what was going on, she came over to claim her baby. That story is my personal favorite.

Zoe loved taking care of all the babies in the troop. When Bala was born, Bala’s mother would not allow Zoe to hold her for the first two weeks because of Zoe’s inexperience with infants. But by the time Teeny-Tiny came along, Zoe was a pro. She would seek out LiLi and snag Teeny-Tiny away so she could hold her and carry her around like Teeny was her own. Sadly, in November we lost Zoe to cancer.

Teeny-Tiny is outgoing and loves to play with Bala and Aluna; occasionally she has trouble keeping up with them, but for the most part she holds her own. She never gives up and always finds a way to entertain herself, like using her mother’s tail as a swing and leaping from branch to branch. But now, at six months old and growing fast, the “teeny-tiny baby” name no longer suits her. She needs a great name to match her great personality. I’ve come up with three names for Teeny-Tiny that are in honor of Zoe, and I’d love to see which name you like best for our growing girl. Here are the choices and meanings:

- Zoli – derived from Zoe and is an ancient Greek name meaning “life”
- Kayla – means “beloved” in the Tigrinya language
- Kalani – Hawaiian for “the heavens”

Please offer your suggestion for the baby langur’s name as a comment below. We’ll see which name receives the most comments in the next few days and announce the winner. And be sure to visit our silvered leaf langur exhibit at the San Diego Zoo, located in the Asian Passage zone on Sun Bear Trail. Thank you for your help!

Beth McDonald is a senior keeper at the San Diego Zoo.

Note: You can help our silvered leaf langur family, and other Zoo primates, by purchasing a toy from our May Animal Care Wish List. The langurs have requested cube toys and snack toys!

Another note: Thanks for voting! We’ll add up the votes on Monday, May 10.

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Langurs: From Orange to Silver

The silver-leaf langur babies at the San Diego Zoo are doing very well (see previous post, Langurs: Bright Orange Babies). Tevy’s baby, born on February 26, 2009, is almost all silver with only a little bit of orange left. Adamena’s baby, born on April 13, is still mostly orange. The babies play together throughout the day. I have seen them climbing around and jumping from one branch to the next. They will swing around on branches, holding on with one hand, and hang upside down.

We have not yet confirmed the babies’ genders, but we suspect they are females. We let the mother take care of the babies, and we do not interfere unless there are complications. They stay close to their mothers, which makes them difficult to sex. Once the babies start getting more confident, they will spend more time away from their mothers when they are close to us.

Tevy’s baby gets around very well and is a great climber. Adamena’s baby is learning fast. This mother is very protective of her baby; she doesn’t let her baby travel too far away. Tevy, on the other hand, is an experienced mother and is very laid back.

The babies like to play with Zoe, who is considered a subadult (not a juvenile but not quite an adult). Tevy’s baby especially is fond of Zoe; she will follow her around and grab onto her whenever she passes. Zoe tolerates the babies and for the most part seems to enjoy interacting with them. Come watch them on the Sun Bear Trial in the Zoo’s Asian Passage zone.

Beth McDonald is a senior keeper at the San Diego Zoo. Read Beth’s previous post, Keeping Up with Lion-Tailed Macaques.

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Keeping Up with Lion-Tailed Macaques

We have a troop of six lion-tailed macaques (one male and five females) at the San Diego Zoo. They have a beautiful habitat on the Sun Bear Trail in the Asian Passage zone. These energetic monkeys are very entertaining to watch: they love ripping boxes and bags open to see what’s inside, like opening a present. The troop likes to keep busy, so we provide enrichment for them at least three times a day.

Their food is presented differently every day, too. They get fed five times a day and, as a Zoo visitor, you can watch them hunt and manipulate their food and enrichment twice a day. The first feeding and enrichment is in the morning between 8 and 10, and the second is in the afternoon between 1 and 2:30. Don’t worry if you miss their release onto exhibit, because they can be found throughout the day foraging for food, hunting for insects, grooming each other, and interacting with their enrichment—such fun to watch!

Antoinette, Adam, and Etienne

Antoinette, Adam, and Etienne

Each macaque has a distinct personality trait. See if you can find these individuals on your next Zoo visit:

Adam is the dominant male and is the oldest macaque in our troop, born at the Woodland Park Zoo in 1984. He has two distinct characteristics to his personality: easy going or mischievous. Adam is kind of aloof to or confused by the female dynamics of this troop. He is a very good-looking male lion-tailed macaque, and he is unmistakable on exhibit as he is significantly larger than the females.

Etienne is the dominant female, born at the Wild Animal Park in 1994. She is strong, VERY confident, and acts as if she believes herself to be the troop’s boss. No one challenges Etienne: she is “Number One” in the troop. Etienne rules mostly by dominance displays rather than aggressive threats. She walks with a strut and can easily be identified by the way she carries herself on exhibit. Etienne is very beautiful and has the shiniest coat.

Antoinette (pictured above) is just under Etienne in the troop’s social ranking, yet she is the largest of the females. She will displace lower-ranking females to keep her “Number Two” spot, mostly by aggressive threatening. Antoinette is always hunting, either for browse she can reach or insects she can find. She really enjoys playing with all the enrichment she gets. Antoinette can be identified by her large size and shorter tail. Born at the Wild Animal Park in 1992, she is the largest female. Antoinette has the same father as Etienne.

Marie is the oldest female, born at the Zoo in 1986. She is very wise and confident but stays out of the way. In her day, she was the dominant female of her own troop. Today, when challenged by the other females, Marie, who is the smallest and is out-weighed by several kilograms, will hold her own and not back down. Etienne is respectful of Marie, usually does not displace her, and will defend her, if necessary. Marie is significantly smaller than the others, and her middle finger on her right hand does not bend. She has the same mother as Etienne.

Jean is laid back and independent. She is leery of the other females and likes to stay on the outskirts. Basically, Jean does her own thing. Upon release to the exhibit after I’ve prepared it, Jean will head straight for the upper part by traveling on the ground instead of on the “furniture” in the exhibit. She is very submissive to Etienne, although she is the second-largest female. Jean has a box-shaped body. She was born at the Wild Animal Park in 1989.

Grace is the lowest-ranking female; she gets displaced by the other females, mainly because she does NOT stay out of their way. She includes herself in everything! Grace is very defensive, even when she is not being challenged; she will often challenge her keepers rather than the other females in the troop, and she seems to gain confidence by doing so. Grace has a bald patch on her back and a slight curve to her back. Born at the Zoo in 1987, she, Antoinette, and Jean have the same mother, Ginger.

Beth McDonald is a senior keeper at the San Diego Zoo. Read her previous post, Gibbon Siblings Reunited.

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Gibbon Siblings Reunited

I just wanted to update everyone on the San Diego Zoo’s Gabrielle’s crested (or red-cheeked) gibbon, Gaby, and her new roommate, Chui (see post, Gibbon: New Home for Gaby). He arrived on May 8, is seven years old, and is Gaby’s baby brother! Gaby and Chui lived with their parents and other siblings at the Wild Animal Park. When Gaby was four, she left her younger brother to come to the Zoo; now, almost five years later, they are back together again.

When we introduced them in March, it was like they were never apart. Chui caught on very quickly. He did everything Gaby did. She taught him how to play with some of his new enrichment items and showed him the best places to sleep, sunbathe, and brachiate (swing arm to arm). Now they seem to be attached at the hip! Gaby and Chui’s complete vocalizations can be heard throughout the Zoo.

If you have stopped by recently, I am sure you have seen both Gaby and Chui showing off their acrobatic skills and working their gibbon charm on all their visitors. If you haven’t made it down Center Street (formerly known as Bear Canyon) yet, now is the time. They are really amazing animals and a complete delight to see!

Beth McDonald is a senior keeper at the San Diego Zoo.

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Langurs: Bright-Orange Babies

You may think most newborn monkeys would blend in with their mothers. However, with silver-leaf langurs it is quite the opposite: their babies are a beautiful bright orange! There are several theories as to why this is; unfortunately, it is unknown which theory is accurate.

Theory 1: It makes it easy for the mothers to find them, as young langurs like to explore. They can sometimes travel a little too far away from their mothers. Being bright orange, their mothers can easily spot and retrieve them.

Theory 2: The orange actually helps the babies blend into their surroundings. It seems hard to believe that bright orange could be used as camouflage, unless maybe the orange would make them appear as a bright-colored flower on a tree. Most predators are color blind and cannot tell the difference between orange and green.

Theory 3: The coloration lets the other troop members know a new baby has arrived and they need to all share in the caring for the infant. A baby langur can wear a mother out, so having a troop full of babysitters allows Mom to rest. The babysitters can also relieve the mother so she can get something to eat.

The theories I have mentioned are a lot more detailed than what you have just read. It is a matter of opinion as to which theory you believe to be the most likely. Silver-leaf langur babies turn from orange to silver at about three months of age, slowly changing color starting as early as just under a month old.

We now have two orange additions to our troop: one born on February 26, 2009, to Tevy and Aden, and the other on April 13, 2009, to Adamena and Aden. Tevy’s baby is already changing color around her face. So to see two bright orange babies, you will have to hurry to the Zoo’s Sun Bear Forest habitat, because Adamena’s baby is following close behind. They will both be silver before we know it!

Beth McDonald is a senior keeper at the San Diego Zoo.

Read Beth’s previous blog, Silver-leaf Langurs.

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Gibbon: New Home for Gaby

A red-cheeked gibbon mother with youngster

A red-cheeked gibbon mother with youngster

Gibbons are monogamous and, unlike most primates, they maintain a matriarchal society. The natural living arrangements for gibbons are a monogamous pair and their young offspring. When the offspring are mature, they will take cues from their parents and leave in search of starting their own family. The stronger the family bond is between the parents and their young, the more confident they are. They will be more vocal, more defensive of their territory, and more protective of their young. This is reflective of a strong, thriving family of gibbons.

Gaby was housed with the family of red-cheeked/Gabrielle’s crested gibbons in the San Diego Zoo’s Sun Bear Forest: CJ, the dominant female, Max, and their baby, Bohdi. Since Gaby is Max’s sister, she had “visitor” status in the gibbon family’s home. The older Bodhi got, the more confident her parents became. Over time, Max and CJ no longer allowed Gaby in their home. This may seem cruel to us humans, but it is actually a sign of a very healthy family group.

The gibbon family moved to Illinois, a family of silver-leaf langurs moved in (see Beth’s blog, Silver-leaf Langurs), and Gaby moved to a temporary area off exhibit. We renovated an existing exhibit in Bear Canyon to suit Gaby, removing everything so we could start from scratch. We based our design on information given by keepers who have taken care of Gaby over the years. We used materials she prefers and the size of the furniture that she uses the most, and we attached all the furniture so that Gaby can exercise by brachiating from branch to branch without having to stop.

On April 17, we finished Gaby’s new home. She moved in first thing the next day. As soon as Gaby went outside we knew all of our hard work had paid off: she was swinging around, vocalizing and introducing herself to all the visitors. Gaby likes hanging around people, especially babies and children. She will interact with them all day by looking at them, talking to them, and showing off for them. Gaby appears to be very happy in her new home between the sloth bears and the grizzly bears. We know Gaby would love it if you came by and said hi.

Beth McDonald is a senior keeper at the San Diego Zoo.