Click here to see the related story, "Are Efforts to Save the Panda a Giant Waste of Money?"
The recent death of Ling-Ling, the only giant panda owned by Japan, sent the world into mourning. Everything about these giant teddy bears—their squat, furry bodies, their sad black eyes, their especially vulnerable babies (often compared to sticks of butter)—makes them ridiculously, scientifically cute. This, along with their dire status as a species, makes them a powerful symbol for the conservation movement as a whole.