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WunderMap® |
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49097 Benson Port Huron Grand Rapids Manistee Wisconsin Rapids Las Vegas Concord, NH |
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Examining The Hummingbird Tongue |
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Tongues are important, biologists say. Two recent studies explore tongue design and function--how they are used for lapping by dogs and for nectar retrieval by hummingbirds. Margaret Rubega, of the University of Connecticut, explains how hummingbird tongues, without any muscle, grab liquid. A. W. Crompton and Catherine Musinsky, of Harvard University, and Crompton's dog Matilda, demonstrate how dogs get water in their mouths by flattening the tongue into a plate and how the liquid travels through the mouth. (Credits: video, stills: Alejandro Rico-Guevara and Margaret A. Rubega/PNAS A. W. Crompton and Catherine Musinsky/Biology Letters) Viewed 4316 times. See More Videos Most hummingbirds propel their tongues great distances--in some cases the length of their heads--to retrieve nectar. Biologist Margaret Rubega explains how the structure of the hummingbird tongue grabs liquid, and the evolution tales tongues tell. |
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