What you meant must be the adaptive advantage of the frogs' lungs. Frogs are considered as amphibians wherein the have this unique ability to reside either on land or in water. Their specialised lungs could be responsible to these which makes them capable of breathing oxygen in water and land.
From what I know, Its simply an outside force that kills an unsuspecting population, so do with that as you will, im only a highschool fetus
Answer:
I belive the answer is spring
Explanation: Due to the facct that he can see it so he can map that
