Left: Deer
antlers grow
each veer. and are
mainly used by males
for battles during the
.. rutting season, after which they
are shed, generally in the spring'
(younger deer slightly later than
this). They are made of bone that
grows directly from the
skull at the blunt lower end or
boss.• Elk antlers can grow et
more than 2. 5cml1 in in a day;
deer antlers lengthen at less than
half this rate.