Warm blooded animals like mammals from colder climates generally have shorter ear and limbs. This is an explanation of A. Jordan’s rule B. Allen’s rule C. Rensch’s rule D. Bergmann’s rule
Option B According to Allen's rule, in endothermal animals of colder areas, the extremities like feet, tail, ears, etc. tend to be smaller as compared to their relatives in warmer regions. This minimizes heat loss.
