We talked about a diversity of respiratory strategies used by animals in class. One of the main differences between fish & frogs compared to reptiles, and mammals was that fish and frogs use buccal pumps and reptiles and mammals use suction pumps. How do buccal and suction pumps differ (please refer to where volume and pressure is changed and how it moves the respiratory medium through the respiratory system)? Explain how frogs use buccal pumps and mammals use suction pumps to ventilate their lungs. Birds use a modified pump system - how is this pump system of the bird different from mammals? g