BERGMANN'S RULE


Meaning of BERGMANN'S RULE in English

ˈbərgmənz, ˈberg- noun

Usage: usually capitalized B

Etymology: after Karl Bergmann died 1865 German biologist

: a statement of the principle that within a polytypic wide-ranging species of warm-blooded animals the average body size of members of each geographic race varies inversely with the mean environmental temperature

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.