Ever see a set of antlers like this?

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The pedicle area of the skull contains unique material which enables antler growth. Damage to the pedicle results in abnormal antler growth and, interestingly enough, transplanting material from a pedicle to other skeletal regions results in growth of antler tissue in the transplanted area.

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Scientists have transplanted material from a pedicle onto the forehead of mice and caused them to grow antler-like projections. They have also transplanted this material onto the tibia (lower leg bone) of deer and caused them to grow an antler from their leg. I have observed bucks with a third antler arising from their forehead or face that clearly originated separately from their other antlers. Though the buck may have been born with this extra pedicle material, injury to the pedicle or adjacent skull region is more likely the cause.

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