Chimpanzee Sanctuary Northwest

Hope. Love. Home. Sanctuary for primates.

chimp enrichment

Modifying Toys

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Jamie had one goal today and it was to pry that howdy door wide open. As you will see in the video that is not the case. Though, we will be starting the long awaited introduction soon. Jamie decided today she did not want to wait anymore! Jamie started with a toy that was put out for them an the playroom. She began hammering at the door and eventually modified the toy (tool) into what seemed more helpful for Jamie. Tool modification is also a behavior seen in the wild. An infamous example for wild chimps modifying tools would be fishing for termites. The chimps take a twig, strip it clean, dip their tool in the termite mound, the termites grab on to twig, and violà! Termites on a stick! When we put out a food puzzle for example: pvc tube with peanut butter, we often offer a tool like a chop stick to help. That way it is the chimps choice in using their finger or finding a potentially quicker way for them to get the peanut butter. Some chimps may adjust their tool to better help them obtain their goal! Or maybe even a better example is when there is food outside of the caging. The chimps will find an item such as a tooth brush, piece of paper, or a tube that will be able to allow them to pull the food closed so they can reach it. Jamie will sometimes find a piece of cardboard and rip the cardboard until it is the perfect tool to grab the food.

Jamie is an amazing tool user. However, Jamie’s goals are usually a bit different. Jamie is fascinated by actual human tools and will modify toys or objects to help her in her “projects” like opening the howdy door.

 

 

Honey B’s Style

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As highlighted in a recent post, Honey B is already known for her intelligence, energy and creativity. Not only is she an engineer and a philanthropist, but she is also a fashion enthusiast.

Yesterday, she decided that the cloth headbands we provide as enrichment are better suited as waistbands. Interestingly, she isn’t the first chimp to have this innovative idea! As caregiver Kelsi showed us last month, Annie has been wearing headbands around her waist for years.

It would be tempting to suspect that Honey B learned the behavior from Annie, which would be great evidence of cultural transmission between groups of chimpanzees. In the wild, chimpanzee communities across Africa have cultural traditions (i.e., their own ways of doing things) that spread among individuals via social learning. Chimpanzee cultures are rich and fascinating, but may be disappearing. This year, scientists published a paper about the negative effects that human activity may have on the cultural diversity of wild chimpanzees. As chimpanzee numbers dwindle and we degrade and fragment their forested habitats, their capacity for culture catastrophically decreases.

Although the process of cultural transmission certainly exists among groups of captive chimpanzees, it has been difficult to document and is seldom reported. In the case of Honey B and the waistband, it seems unlikely that she learned it from Annie. Annie only wears the improvised belt for a few days or weeks and then ignores them for the rest of the year, and she had already stopped wearing this summer’s edition before Honey B and her friends arrived from Wildlife Waystation last month. It is possible that one of the many videos we showed to the new trio features a scene of Annie sporting the headband-waistband look, but it’s more likely that they both just have similar taste in enrichment and utilize what we give them in novel ways.

With that being said, it will be interesting to see if any behaviors do cross over from one group to the next! Chimpanzees are brilliant and creative, and never stop surprising us.

 

Won’t You Be My Neighbor?

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It’s been a few weeks since Honey B, Willy B and Mave arrived from Wildlife Waystation, but it’s only been a few days since the Cle Elum Seven got their first glimpse of their chimpanzee neighbors.

The new arrivals get to access the outdoor tunnel (left) that will soon connect to the Young’s Hill enclosure.

As a staff, we’ve already noticed and discussed interesting patterns of behavior between the two groups. For example, Jody and Willy B have been spending considerable time staring at each other through the window. The three new arrivals have remained relatively composed and seem to be calmly sizing up their new acquaintances, while the seven original residents seem to be more excited. There was a huge mess by the windows in the Playroom this morning, indicating that the chimpanzees spent a lot of time looking outside at the adjacent tunnel.

The Playroom was trashed this morning.

Today was a bit unusual because we needed to briefly close off the outdoor tunnel and Young’s Hill for two separate maintenance projects. This meant that the groups were temporarily unable to see each other. Instead, Willy B. spent some time in front of the Howdy Door and made some noise to advertise his presence. On the Playroom side, Burrito and the others put on a concert of displays, screams and hoots.

Willy B. watches the Howdy Door, listening to the chimps on the other side.
Burrito’s hair stands on end, expressing his excitement.
Missy hoots.
Burrito hoots and displays in the Playroom.

For the seven original residents, checking in on the new cohort of chimps has taken up a lot of their time and effort, but has not completely derailed their usual activities. They enjoyed a lunch forage on Young’s Hill once the maintenance was complete, and Missy dominated the field by gathering up all the celery and bringing it into the Greenhouse.

Missy finds celery.
Missy carries celery.
Missy consumes celery.
Missy thinks about celery.

Also, naps happened.

Foxie naps with a doll.
Neggie naps with breakfast and blankets.

Now that the initial shock of seeing unfamiliar chimps has passed, the Cle Elum Seven seem to be monitoring their neighbors just as they keep tabs on the surrounding pastures, the volunteers, the tomato garden, and the refrigerator. The caveat is that these three new additions to the environment are also chimps, which means they are fully capable of responding right back.

Burrito looks out of the Playroom window at the chimps in the tunnel.

Structural Enrichment

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I have occasionally heard the word “enrichment” defined as items that are given to animals once their basic needs have been met.

In contrast, I think of enrichment as an entire philosophy, not just something extra that we do when our other work is done. For these chimpanzees and all other captive animals, enrichment is a basic need. Although survival would be possible without enrichment, thriving would not. Here at the sanctuary, every aspect of our daily routine, from meal preparation to cleaning, is done with the ultimate goal of keeping the chimpanzees happy and healthy. There is no easy way to group items or activities into “enrichment” or “not enrichment.” We just enrich everything.

In addition to distributing troll dolls, cowboy boots and slinkies, our team designs and builds new structures for the chimpanzees. The way in which we design and furnish the facility is considerate of the chimpanzee’s physical and emotional needs, and we often add or change components of the enclosures to keep the surroundings interesting and functional for the chimps. A great example is the network of firehose “vines” that transects the Playroom, Greenhouse, Hill, and new wing of enclosures. The video posted above shows how Jamie gets to use the firehose however she wants, giving her a greater degree of choice in addition to the obvious security and stability that such additions provide.

We’re also excited to share a photo of a new firehose hammock, modeled by Level III volunteer and CWU graduate student Chad. Several volunteers and interns helped staff and contractors to furnish the chimpanzee areas of the Phase 1 expansion with benches, firehose, hammocks, and ladders. The new hammock is hanging in the upstairs mezzanine enclosure, and will hopefully be enjoyed by the sanctuary’s newest residents once they arrive!

Pitter-Patter

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Today was all about hustle.

It began with few solid hours of continuous serving, shifting, checking, cleaning, and enriching. The morning team of volunteers (Keri, Jon and Miranda) made sure that tasks got done swiftly and thoroughly. The Playroom was scrubbed and disinfected, the meals were prepared and served, and the laundry was washed and dried. The vibe was contagious. Enthusiasm was in the air.

Level III Volunteer Erin J.

People went back and forth like worker bees droning around a hive. It was honestly a bit difficult to keep track of all the humans going from place to place, carrying out tasks and coordinating with each other. The staff spent the day furnishing the new chimp areas and attending meetings, Dr. Erin swung by for a visit, volunteer Lizz stopped by to serve the chimps’ lunch, volunteer Erin came in to prepare dinner and enrichment, and the whole team even found time to prepare some firehose for enrichment projects. Everyone was on a mission.

The new wing of enclosures, currently nearing completion!

The bustle around the Chimp House continued through the afternoon and well past the chimps’ dinner, so I felt relieved when the chimpanzees allowed me to close off Young’s Hill, turn off the lights in the Playroom, and begin locking the Chimp House doors for the night.

My relief was short-lived, however, because Jamie wanted something. There she was, an ape silhouette behind the Playroom caging, gesturing at me to bring her something. I checked to see if she wanted boots, then books, then books about boots. She insisted on having something else.

I sat down near the caging and gave her a long plastic tool which she used to groom my shoelaces, inspect my tattoos, and poke at my freckles. She was entertained for a couple of minutes, but the diversion subsided and she began to demand something else. I took off one of my Timberlane hiking boots and managed to wiggle my foot halfway into a woman’s leather cowboy boot, which she seemed to find unimpressive. I even reached for a children’s book about monkeys jumping on a bed and read it aloud, showing Jamie the pictures as I went. I altered the story to make it about Jamie going to bed while I locked up the building and went home. She was not amused.

Jamie using a tool to groom my boot.

We caregivers always work in teams, and I soon had to ask caregiver Katelyn for help with appeasing Jamie. We rummaged around the kitchen and enrichment bins, trying to see the Chimp House from Jamie’s perspective and identify the object of her desire. Boots? Nope. Dolls? Meh. Another grooming tool? (-_-). Troll scarves? Closer. A raspberry? Close enough.

Katelyn drops enrichment into the chute for Jamie.

With Jamie (temporarily) satisfied by the tiny red raspberry, we quickly said “goodnight” and retreated from view.

There aren’t many captive chimps who demand as much from their caregivers as Jamie does. This weekend was fast-paced and full of activity, so it’s only fitting that Jamie gave us a little extra work on Sunday evening. We’ll see what she has on the itinerary for tomorrow.

Jamie grooming another chimp this morning.

Dining Out

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It’s almost like summer officially arrived today. The sun felt stronger this morning, and the grass on the hill looked considerably more golden than it did they day before. On this side of the Cascades, the Northwest is drying out. Although we have blue skies and warm weather ahead, we also have to contend with an arid and dusty landscape until the snows arrive later this year. It will be a sad day when the last raspberry is picked and the chimps will have to wait until next summer for more.

The chimpanzees are dealing with the annual desiccation of Young’s Hill in their own way. Today’s lunch of nuts and veggies was spread across the habitat, motivating them to spill out of the Greenhouse and forage. The prairie grass was extra crispy underfoot, causing the chimps to tread carefully while wading through in search of food.

Negra:

Burrito:

Jody:

Jamie:

After collecting handfuls of produce, the chimps all climbed onto the habitat’s various wooden structures. From there, they could eat their meal in the warm sunshine while sitting far above the prickly grass below.

Foxie:

Negra:

The meal ended the way that all great meals end; the chimps put their feet up and took a well-deserved siesta.

Burrito:

Even this dismembered troll doll dozed off.

Only one chimpanzee returned to the outdoors to enjoy some alone time in the shade…

…and I soon identified her as Foxie, enjoying a moment of solitude in the warm summer breeze.