|
Book Review Section
Raymond and Lorna Coppinger. Dogs: A Startling New Understanding
of Canine Origin, Behavior, and Evolution. New York: Scribner,
2001
Alan M. Beck , Purdue University
This very readable book takes an evolutionary and very personal
look at dogs. Either a lack of rigor or an effort to stimulate
discussion may account for its many generalizations. The authors
argue that dogs could not survive without people but pay a
price. Of course, all animals, wild and domestic, are now
influenced by human activity.
The Coppingers review the standard hypothesis of dog
domestication from the wolfthat early people selected and bred
wild wolves to create the dog. However, they have trouble with
this simplistic interpretation. They note Darwin’s observations
that, to create new breeds of pigeons, required a large
population from which one can select desired traits. The authors
do not believe that early Mesolithic people had access to a big
enough population of wolves to account for the variety of dogs
we see today. In addition, the transformation occurred faster
than they believe. But they ignore just how much time was
involved and that just in the last 50 years people have been
able to develop an incredible variety of dog breeds from
relatively few dogs.
They note that not all the traits distinguishing dogs from
wolves are variations found in wolves; thus, they could not be
objects of selective breeding. One explanation is that selection
for a behavioral trait may cause novel physical changes. They
discuss the work of Dmitri Belaev who, by selecting for tameness
in wild silver fox, produced foxes with dog traits like piebald
coats, floppy ears, and dog-like sounds—traits not found in wild
foxes.
Distinguishing this book is the hypothesis that people living in
villages created a new niche and that dogs evolved by natural
selection for this new niche. They searched for village dogs,
looking for the Mesolithic dog, and spent much time observing
the dogs of Pemba, off the East African coast. The physical and
cultural isolation of the villages is most like the world when
dogs were first developed. Because of the small concentrations
of food, Pemba dogs do not form packs an example of why the
simple wolf model may not be appropriate. While dogs may be
self-domesticated, I propose the same for cats and even humans.
Their comments of livestock-guarding dogs provide fascinating
reading with anthropological and sociological insights that are
not typical of most books on animal behavior. Development of
such dogs is a product of arduous selection, lots of migration,
and high mortality. There is a selection for size to handle food
deficits and cold weather better. There is selection for
pigmentation so dogs may be more resistant to sunburn, and their
distinctive coloration facilitates ownership.
Another insight in the development of guarding dogs is the
discussion of critical periods. The success of a guarding dog is
not shape but exposure to sheep during the critical period. From
the time they open their eyes at about 13-days until about
16-weeks, dogs are learning what is important in their lives.
The Coppingers hypothesize that early experiences change the
brain, so the critical period really helps shape the dog in many
ways. Wolves mature much faster than do dogs and thus have a
much shorter period, until day 19, in which they can learn new
behaviors. Thus, wolves do not make good pets.
Sled dogs are another love for the Coppingers. With comparative
data and well-written rhetoric, they clearly admire the stamina
of the sled dog, presented considering the length of some
races as the world’s fastest animal. They feel that the sled
dog is the pinnacle achievement of dog-human mutualism.
The authors seem not to equate the benefits we receive from
household dogs with the more tangible benefits we get from
working dogs. They acknowledge the health benefits but appear to
require more convincing. They fault us humans for the
one-sidedness regarding our relationship with animals. They
ignore the data on how dogs benefit from human contact, dating
back to Pavlov who noted that his dogs experienced a drop in
heart rate when he arrived. The Coppingers do not mention the
many social advances addressing animal welfare.
The book takes on many ethical issues related to our
relationship with dogs. They rant that the dog population eats
incredible quantities of farm-grown food that could go to people
and estimate that the U. S. dog population eats as much as all
the people in New York, Chicago and Los Angeles combined. Their
argument ignores that animal foods use food wastes and thus
provides a market for such products, therefore lowering the
price of human food.
Most relevant are their objections to training dogs as if they
are wolves. Dogs do not think like wolves anymore than we think
like monkeys. Dog trainers would do better just to study dogs.
They note that we have known about critical periods since Scott
and Fuller’s work in 1950, but dog trainers and breeders do not
understand the importance of shaping behaviors and still look
for confirmation to predict behavior. The Border Collie may not
care about herding the sheep but enjoys the motor pattern
involved. For a predator, predation is its own reward. Predation
is not only for food but also for pleasure. Any of us who enjoy
our work may appreciate this.
The Coppingers take issue with our society that now chooses dogs
by the way they look as opposed to the way they behave. They go
so far as to state that working dogs should not be bred or sold
for the “pet” class. That is the work of the village dog. Their
attack on the pet class is presented as an example of dulosis.
Dulosis is an entomological term for the enslavement of an ant
colony by an ant colony of another species. We humans have
enslaved dogs as our servants. The Coppingers feel the best
(worst) example of slavery would be service dogs. “There is
little question that the service dog represents a great benefit
for a very few humans, but is also a biological disaster for any
dog that gets trapped in the system.” They emphasize the 50%
failure rate reported for most service dog-training programs.
They argue that part of the reason is that the dogs rarely are
exposed to the problems they will face during their critical
periods— a point well taken. Coppingers forgive working dogs as
although victims of forced labor, they have the opportunity for
breeding based on performance. Assistance dogs are in a
dead-end. The authors see dog sledding as less exploitive than a
dog’s helping a person in a wheelchair. They fail to note that
service dogs also have a companionship role and enjoy a
life-fulfilling role.
The book’s major message is that there is no gene for a good
dog—good dogs are made after they are born, not before. The
observation is probably true for people as well.
Note
For Abstracts of all issues, including the most current, click
Article
Abstracts
To order Society &
Animals Journal, go to our secure online
ordering page
You
can Search the online issues of Society & Animals, as well
as the entire Society & Animals Forum (formerly PSYETA)
website,
for topics and keywords of your interest:
|