Allen's Rule
Within species of warm-blooded animals (birds + mammals) those populations living in colder environments will tend to have shorter appendages than populations in warmer areas. | ||||
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Allen's Rule Definition from Encyclopedia Dictionaries & Glossaries
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Allen's rule
Allen's rule is a biological rule posited by Joel Asaph Allen in 1877. It states that endotherms from colder climates usually have shorter limbs than the equivalent animals from warmer climates.
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