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| Teaching Since: | May 2017 |
| Last Sign in: | 409 Weeks Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Adder Head Size. Red Riding Hood: “My, what big teeth you have!” Big Bad Wolf: “The better to eat you with, my dear.” Are predators morphologically adapted to the size of their prey? A. Forsman studied adders on the Swedish mainland and on groups of islands in the Baltic Sea to determine if there was any relationship between their relative head lengths (RHL) and the body size of their main prey, field voles. (Data from A. Forsman, “Adaptive Variation in Head Size in Vipera berus L. Populations,” Biological Journal of the Linnean Society 43 (1991): 281–96.) Relative head length is head length adjusted for overall body length, determined separately for males and females. Field vole body size is a combined measure of several features, expressed on a standardized scale.

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