The Descent of Man

cage of the wart-hog. They fought all night
long, and were found in the morning much
exhausted, but not seriously wounded. It is a
significant fact, as shewing the purposes of the
above- described projections and excrescences,
that these were covered with blood, and were
scored and abraded in an extraordinary manner.
Although the males of so many members of the
pig family are provided with weapons, and as
we have just seen with means of defence, these
weapons seem to have been acquired within a
rather late geological period. Dr. Forsyth Major
specifies (41. 'Atti della Soc. Italiana di Sc. Nat.'
1873, vol. xv. fasc. iv.) several miocene species,
in none of which do the tusks appear to have
been largely developed in the males; and Professor
Rutimeyer was formerly struck with this
same fact.
The mane of the lion forms a good defence
against the attacks of rival lions, the one danger