The Descent of Man

of the above-named antelopes, the Portax picta,
has a large well-defined brush of black hair on
the throat, and this is much larger in the male
than in the female. In the Ammotragus tragelaphus
of North Africa, a member of the sheepfamily,
the fore-legs are almost concealed by an
extraordinary growth of hair, which depends
from the neck and upper halves of the legs; but
Mr. Bartlett does not believe that this mantle is
of the least use to the male, in whom it is much
more developed than in the female.
[Fig. 68. Pithecia satanas, male (from Brehm).]
Male quadrupeds of many kinds differ from
the females in having more hair, or hair of a
different character, on certain parts of their faces.
Thus the bull alone has curled hair on the
forehead. (15. Hunter's 'Essays and Observations,'
edited by Owen, 1861. vol. i. p. 236.) In
three closely- allied sub-genera of the goat family,
only the males possess beards, sometimes
of large size; in two other sub-genera both sexes