Behavioural Adaptation

A behavioural adaptation that the Swift Fox have adapted into is that the different groups of Swift Foxes consists of a mated pair and their pups. Occasionally, the group has two or three female foxes with one male fox.  One of the female foxes is a "breeding" female while the other one or two is a "non-breeding helper". There is never two fully grown male foxes in a group. It is basically every family for themselves.

This behavioural adaptation increases their survival because it is a smaller group of mouths to feed - just their mate, themselves, and their pups. Also, there isn't a "fight" about the leader of the group, like some species (for example, wolves), because there is never more than one fully grown male in the group.