Although Allen's and Bergmann's rules often explain body shape and morphology,we occasionally see variations from the excepted patterns.What does this sometimes indicate?

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Quizplus · Accepted Answer

Allen's and Bergmann's rules suggest that body shape and morphology are adaptations to environmental conditions, indicating an evolutionary response to environmental stressors. Variations from these patterns suggest that the association does indeed respond to such stressors, rather than being fixed or unrelated to the environment.

Although Allen's and Bergmann's Rules Often Explain Body Shape and Morphology,we