Wednesday, July 6, 2011

Topic 185: Animal Facial Expressions


Carol:
Making Faces                   
 Lots of websites help pet owners interpret the facial expressions and body language of their animals. That includes such variables as the position of the tail, alignment of the body, position of the eyes, lips and teeth, and appearance of hackles. Vocalization is another thing all together. Mostly, with domestic animals, I think we interpret animal facial expressions as we would human expressions. Lips curl up as if to smile says, “Look, I’m happy to see you.” Eyes look sad, happy, or angry.  We spend a lot of time in the daily theme talking about the antics of our two canine pets and the challenges of introducing a puppy into our once placid environment.. Dogs have always been a part of my life.  But in reality there is one animal I have always loved to  watch with fascination on television or at the zoo. Chimpanzees.

I have viewed almost every documentary about the work and life of Jane Goodall, and I was given time off from work to hear her speak when she came to Yale. The large room was absolutely full of students crammed into every possible space. Twenty-five years later, she continues to attract the interest—and affection of people all over the world. And, her website “Lessons for Hope” provides opportunities for students and teachers to learn more about chimp behavior. She describes her experiences with the chimpanzee William in her work The Shadow of Man (68). William, a scarred, submissive male used both facial expressions and hand gestures to send notice to other adult males that he knew his inferior status; he would “often pull back the corners of his lips and expose his teeth in a nervous grin.” (source: Lessons for Hope)

Researchers continue to examine the behavior of chimpanzees, including how they communicate using facial expressions and body language. The Yerkes National Primate Research Center housed at Emory University (Georgia) conducted research into Chimpanzee facial expressions under the direction of director Lisa Parr, not just to learn more about chimpanzees but to help understand “the evolution of human emotional communication” (source: Science Daily). Parr notes that the study has determined chimpanzee expressions to be much more complex than they expected, requiring more detailed studies. For instance, an open mouth and bared teeth that may appear to be “playful” must also be examined for muscle action, whether the eye brow is raised, etc.

When we say a chimpanzee, or any animal for that matter, smiles or pouts or frowns, we are associating human emotions to their expressions that may be inappropriate.  Right now, my dog (the well-behaved prematurely grizzled one) is looking right at me. He is in a full state of relaxation with ears slightly cocked, lower lip jutting out a bit (caught in his teeth again), and I would interpret that to mean he is relaxed but alert—wondering if I’m going to come over and give him a treat or a pat on the head. He’s tired because he had a big adventure on his morning walk. When he turned around at the sound of barking behind him, he took Marc by surprise and leapt for a young coyote, dragging his extension leash behind him, ruining in fact the second one in several weeks. The first time it was a rabbit. I wasn’t there to observe his facial expression, but it was probably one of completely satisfaction since he had been in full running mode all over the hills for about 15 minutes.

But, I wasn’t going to talk about dogs today.
 
Sources;
“Chimpanzee Facial Expressions…” Science Daily. 26 Mar 2007.      

Image of chimpanzee at LA Zoo. Wikipedia

Megan:
Animal Facial Expressions: a photo essay

 

I spent a long time this morning looking at the photos I've taken of Bella and Milo, and I have to be honest. There's little change to their to their expressions. Milo almost always looks resigned and calm (but maybe that's just the expression he adopts when I pick up my phone to snap a picture).

Considering that Bella is one of the clumsiest dogs I have ever seen, she does manage to look dignified,  and even noble every now and then. Of course, it could be the camera angle.


Usually, Bella looks like this:
 

Milo, on the other hand, almost always looks dignified. Except when I force him out of his comfort zone. Here, he is looking profoundly embarrassed.

Milo likes to hang out on the porch in the sunshine. Until a certain someone irritates him and then he retreats to higher ground.
Note that the furniture in disarray, and the torn screen courtesy of Miss Bella.

 Speaking of Miss Bella. She has a bit of a temper. This is the only picture I could get of her in "demon" mode. The white flashes by my blurry finger are her teeth.

But she's a pretty good girl, aside from her occassional outbursts. We finally got her the pool she's always wanted, which she seems to enjoy.

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