Allen's Rule

Q. Mammals from colder climates generally have shorter ears and limbs to minimise heat loss. This is stated by:

1. Bergmann’s rule
2. Allen’s rule
3. Gloger’s rule
4. Foster’s rule

Q. Which of the two animals- arctic fox, red fox is smaller and why?

1. Arctic fox, because it has shorter appendages
2. Red fox, based on allen's rule
3. Arctic fox, because they live in colder climate
4. The animals do not differ in size, because both foxes are quite similar and belong to the genus vulpes