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Antlers
anatomically, bone protrusion from head / From Wikipedia, the free encyclopedia
Antlers are usually large, branching structures, made of bone, which grow on the heads of deer and similar animals.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/e/e6/Irish_Elk.jpg/640px-Irish_Elk.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Red_deer_stag_velvet.jpg/320px-Red_deer_stag_velvet.jpg)
With deer, only males have antlers. Only reindeer (caribou) have antlers on the females, and these are normally smaller than those of the males.