A deer is born with the ability to smell predators better than the other deer in its population. As a result, this deer has several seconds of warning every time wolves or other predators attack. This trait may be selected by natural selection because it increases the deer's _______.
The deer's ability to smell predators better than other deer increases its survival chances by providing several seconds of warning when predators attack. Thus, this trait may be selected by natural selection because it increases the deer's survival or survival fitness.
