The Descent of Man

is polygamous, but, except in his greater size
and in the proportions of his body, differs but
little from the mare. The wild boar presents
well-marked sexual characters, in his great
tusks and some other points. In Europe and in
India he leads a solitary life, except during the
breeding-season; but as is believed by Sir W.
Elliot, who has had many opportunities in India
of observing this animal, he consorts at this
season with several females. Whether this holds
good in Europe is doubtful, but it is supported
by some evidence. The adult male Indian elephant,
like the boar, passes much of his time in
solitude; but as Dr. Campbell states, when with
others, "It is rare to find more than one male
with a whole herd of females"; the larger males
expelling or killing the smaller and weaker
ones. The male differs from the female in his
immense tusks, greater size, strength, and endurance;
so great is the difference in these respects
that the males when caught are valued at
one-fifth more than the females. (12. Dr. Camp-