By raising its heart closer to its head by means of long legs, the giraffe “saves” a net 5% of the energy it takes in from food. Over the course of a year, this energy saving would add up to more than ...

If you’ve ever wondered why the giraffe has such a long neck, the answer seems clear: it lets them reach succulent leaves atop tall acacia trees in Africa. Only giraffes have direct access to those ...