#大雁为什么会排成人字形飞向南方? #这是大雁聪明之处, first of all, the geese have a head goose leading the way in front, and all the geese follow behind, which is like a locomotive pulling

#大雁为什么会排成人字形飞向南方?#

This is the cleverness of the geese, first of all, the geese have a head goose in front to lead the way, and all the geese follow behind, which is as if the locomotive pulls the back carriage; In addition, the herringbone queue of geese is in line with the principle of aerodynamics, and the wind when the geese fly in front will make the geese fly in the back more energy-saving, do you say that this is not the case?