Image caption, Male moose grow a different pair of antlers each year The bigger and more impressive a pair of antlers are, the better chance a bull has of catching the eye of a passing female.

and moose. Every year in late winter or early spring, bucks and bulls jettison their current headgear to begin growing a completely new set of antlers. And every spring, shed hunters hit the woods ...

F rom the small ossicones on a giraffe to the gigantic antlers of a male moose—which can grow as wide as a car—the headgear ...