SMRs and AMRs

Tuesday, April 06, 2010

Even Among Animals: Leaders, Followers and Schmoozers

By NATALIE ANGIER
NYT

I recently tried taking a couple of online personality tests, and I must say I was disappointed by the exercise. I was asked bland amorphisms like whether I was “someone who tends to find fault” with people (duh), is generally “friendly and agreeable” (see previous response), and always “does a thorough job” (can I just skip this question?).

Nowhere were there any real challenges like the following: Let’s say you are very hungry, and you go over to your favorite food dish. Inside you see, in addition to the standard blend of peanuts and insect parts, a bright pink plastic frog. How long before you work up the nerve to eat your dinner anyway? Or: You have just been ushered into a room that is in every way familiar, except that somebody has put a scrap of old, brown carpet in the middle of the floor. Do you keep your distance from the novelty item, or do you rush over and start pecking at it?

These and other vividly tangible gems are taken from the burgeoning field of animal personality research, the effort to understand why individual members of the same species can be so mulishly themselves, and so unlike one another on a wide variety of behavioral measures. Scientists studying animals from virtually every niche of the bestial kingdom have found evidence of distinctive personalities — bundled sets of behaviors, quirks, preferences and pet peeves that remain stable over time and across settings. They have found stylistic diversity in chimpanzees, monkeys, barnacle geese, farm minks, blue tits and great tits, bighorn sheep, dumpling squid, pumpkinseed sunfish, zebra finches, spotted hyenas, even spiders and water striders, to name but a few. They have identified hotheads and tiptoers, schmoozers and loners, divas, dullards and fearless explorers, and they have learned that animals, like us, often cling to the same personality for the bulk of their lives. The daredevil chicken of today is the one out crossing the road tomorrow.

Researchers are delving into the source and significance of all these animal spirits. They are asking questions like, when geese start on a wild goose chase, what sort of goose will lead the flock, and why do the rest choose to follow it? They are devising computer models to explain how different personality types can be maintained in a given animal population, and they are exploring the upsides and drawbacks of different personal styles.

(Continued here.)

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