The Descent of Man and Selection in Relation to Sex, Vol. II (1st Edition)Darwin, Charles
Science
The Descent of Man and Selection in Relation to Sex, Vol. II (1st Edition)
Darwin, Charles
Evolution (Biology); Human beings -- Origin; Sex differences; Sexual dimorphism (Animals); Sexual selection in animals
Accordingly, I applied to Mr. Cupples, a well-known breeder of these
dogs, who has weighed and measured many of his own dogs, and who, with
great kindness, has collected for me the following facts from various
sources. Superior male dogs, measured at the shoulder, range from
twenty-eight inches, which is low, to thirty-three, or even thirty-four
inches in height; and in weight from eighty pounds, which is low, to
120, or even more pounds. The females range in height from twenty-three
to twenty-seven, or even to twenty-eight inches; and in weight from
fifty to seventy, or even eighty pounds.[321] Mr. Cupples concludes that
from ninety-five to one hundred pounds for the male, and seventy for the
female, would be a safe average; but there is reason to believe that
formerly both sexes attained a greater weight. Mr. Cupples has weighed
puppies when a fortnight old; in one litter the average weight of four
males exceeded that of two females by six and a half ounces; in another
litter the average weight of four males exceeded that of one female by
less than one ounce; the same males, when three weeks old, exceeded the
female by seven and a half ounces, and at the age of six weeks by nearly
fourteen ounces. Mr. Wright of Yeldersley House, in a letter to Mr.
Cupples, says: “I have taken notes on the sizes and weights of puppies
of many litters, and as far as my experience goes, dog-puppies as a rule
differ very little from bitches till they arrive at about five or six
months old; and then the dogs begin to increase, gaining upon the
bitches both in weight and size. At birth, and for several weeks
afterwards, a bitch-puppy will occasionally be larger than any of the
dogs, but they are invariably beaten by them later.” Mr. McNeill, of
Colinsay, concludes that “the males do not attain their full growth till
over two years old, though the females attain it sooner.” According to
Mr. Cupples’ experience, male dogs go on growing in stature till they
are from twelve to eighteen months old, and in weight till from eighteen
to twenty-four months old; whilst the females cease increasing in
stature at the age of from nine to fourteen or fifteen months, and in
weight at the age of from twelve to fifteen months. From these various
statements it is clear that the full difference in size between the male
and female Scotch deerhound is not acquired until rather late in life.
The males are almost exclusively used for coursing, for, as Mr. McNeill
informs me, the females have not sufficient strength and weight to pull
down a full-grown deer. From the names used in old legends, it appears,
as I hear from Mr. Cupples, that at a very ancient period the males were
the most celebrated, the females being mentioned only as the mothers of
famous dogs. Hence during many generations, it is the male which has
been chiefly tested for strength, size, speed, and courage, and the best
will have been bred from. As, however, the males do not attain their
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