webbed feet are used for moving faster through water by aquatic animals
webbing is tape. treading_water is aquatic_body_movement. webbed_foot is foot. webbed_foot is bird's_foot. webbed_foot is not bird's_foot. webbing is fabric. treading_water is not aquatic_body_movement. webbed_foot is not foot. duck has not webbed_feet duck has webbed_feet