Animals living in colder region have shorter tail and ears as compared to the animals living in warmer regions. This phenomenon is called

Options

A. Bergman's law
B. Glober's law
C. Allen's law
D. Jordan's law

Answer

C

Explanation

Allen rule is the principle holding that in a warm blooded animal species having distinct geographic populations, the limbs, ears and other appendages of the animals living in cold climates tend to be shorter than in animal of same species in warm climate.