Tuesday, July 23, 2013

Of trunks, tails and tongues

Grew up in New York. One had to talk fast or was considered slow. First job in Oregon after college had to learn to talk a little slower so not to appear as rude. My left tongue is currently much slower than my right tongue in trying to shape the sounds for words. Was my right dominated tongue 100 percent lateralized in speech previously?  I believe so, I am feeling movements in the left tongue that I never did before.

trunk to mouth

In a subsequent analysis, Martin and Niemitz timed the elephants' feeding and found that those who preferred to reach and retrieve from one side of their mouths were up to 0.7 seconds faster at eating than more ambidextrous animals....

The only other study from the literature of comparative psychology or biology looking at an unpaired grasping organ, says Martin, reported an even stronger side preference in a very different animal: spider monkeys. The research, conducted by Laska and published in Cortex (Vol. 34, No. 1), found that when captive adult monkeys reach for raisins with their tails, they curl their tails around the food in the same direction 100 percent of the time.
"We found some of the strongest lateralization ever recorded" in monkeys, Laska notes.

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