Growth depends on nutrition and heredity. Antlers can also be found on female deer. Normally the doe has spikes that remain in velvet. The spiked doe remains fertile and can produce young. This occurs in one to every 20 thousand deer. In the Maryland deer kill, only two or three antlered doe are reported each year.
http://www.dnr.state.md.us/wildlife/antlers.asp
They must be very confused during puberty.
Not knowing whether to rut or slut
Trust me, the gay lesbian coalition will get ahold of this article and use it as proof of a gay gene ... and imply that 20% of us have it!! ;-)