__ rule states that mammals from colder climates generally have shorter ears and limbs to minimise heat loss.
Allen's
Berger's
Borge's
Powell's
Adaption of species:
Mammals from colder climates generally have shorter ears and limbs to minimise heat loss. (This is called the Allen’s Rule.)
In the polar seas, aquatic mammals like seals have a thick layer of fat (blubber) below their skin that acts as an insulator and reduces loss of body heat.