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Dogs and All about Them
·
Robert Leighton
13
It
has
been
suggested
that
the
one
incontrovertible
argument
against
the
lupine
relationship
of
the
dog
is
the
fact
that
all
domestic
dogs
bark,
while
all
wild
Canidae
express
their
feelings
only
by
howls.
But
the
difficulty
here
is
not
so
great
as
it
seems,
since
we
know
that
jackals,
wild
dogs,
and
wolf
pups
reared
by
bitches
readily
acquire
the
habit.
On
the
other
hand,
domestic
dogs
allowed
to
run
wild
forget
how
to
bark,
while
there
are
some
which
have
not
yet
learned
so
to
express
themselves.
The
presence
or
absence
of
the
habit
of
barking
cannot,
then,
be
regarded
as
an
argument
in
deciding
the
question
concerning
the
origin
of
the
dog.
This
stumbling
block
consequently
disappears,
leaving
us
in
the
position
of
agreeing
with
Darwin,
whose
final
hypothesis
was
that
"it
is
highly
probable
that
the
domestic
dogs
of
the
world
have
descended
from
two
good
species
of
wolf
(C.
lupus
and
C.
latrans),
and
from
two
or
three
other
doubtful
species
of
wolves--namely,
the
European,
Indian,
and
North
African
forms;
from
at
least
one
or
two
South
American
canine
species;
from
several
races
or
species
of
jackal;
and
perhaps
from
one
or
more
extinct
species";
and
that
the
blood
of
these,
in
some
cases
mingled
together,
flows
in
the
veins
of
our
domestic
breeds.
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