Chimpanzee Sanctuary Northwest

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prehensile

Chimp feet are pretty handy

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Recently, Edie asked: I am amazed when I see pictures of their feet-they seem so versatile! Do they ever use their feet like hands?

Chimpanzee feet are pretty amazing indeed. Unlike our own, they are prehensile, meaning they have the ability to grasp. This is because their big toes are opposable, like our thumbs.

Annie, holding her hand with her foot

This is presumably an adaptation to aid in climbing, like when scaling tree trunks:

Or when clinging to vines and small branches:

They can also aid in maintaining balance when perched precariously above the ground:

But they can also function like an extra set of hands when necessary. Gathering tomatoes? With prehensile feet you can haul twice as many.

Difficult Kong puzzle? Why not let your feet do some of the work and free up both hands?

Wondering where to put your doll when you are eating lunch suspended from the caging? You can trust that Dora the Explorer will remain safely in the grip of your opposable toe.

The dexterity of chimpanzee feet also makes them great for tickling.

I hope all chimpanzees stop once and a while to appreciate having such useful feet.

First snow

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It’s been a pretty mild fall / beginning of winter, and we finally got our first snowfall at the sanctuary overnight. It was just a dusting, but Missy was VERY eager to get outside for a taste.

Missy's hand reach for snow

Missy eating snow

Jamie also went out quickly to get a snack.

Jamie's hands reaching for snow

Jamie with handfuls of snow

We were wondering if the colder weather might slow down Jamie’s desire to walk around the hill. The answer is no. So far four walks and counting. She did wait until the snow melted, though. Missy joined Jamie on one of her walks. She gave us a big head start then ran full-speed up the hill. You can see a photo on her Facebook page.

 

Speaking of Facebook, a few weeks ago we asked on our Facebook page how fans became interested in chimpanzees. The answers were really interesting. One person recalled the video of the chimpanzees at CSNW first experiencing a big snowstorm, which was shared on a couple of news stations.

The video, which is now almost five years old, is posted below. That was before we put the panels on the greenhouse, so really before they had a greenhouse, and long before they had the 2-acre Young’s Hill. The chimps are leaning out of front room #4 into what we called the outdoor area then. Listen to those happy food squeaks and watch the prehensile lips in action!