If someone owns
a polar bear with dental caries,
that guy has
a big problem: he owns
a polar bear! Besides being dangerous,
illegal, unethical
and unmoral, owning
a polar bear has
to be very expensive.
Most
of us never had,
and will never have,
to deal with
health issues of polar
bears. However, zookeepers
and veterinarians
have to deal with
animal health issues
everyday, and sometimes with polar bears teeth decay.
Health issues
of a
captive animal directly affect
the biological and psychological
welfare of that animal. So,
quick diagnostic procedures are,
or should be, a priority
for modern zoos.
But, how to know if
the polar bear has dental caries?
Or the elephant
is shortsighted? Or the penguin has
lost weight? Well,
some modern
zoos are using
positive training (reward-based training)
as a
quick and non-invasive way to assess health issues
in captive wild animals.
Through positive training, which is based
on principles
of operant conditioning, some modern zoos have obtained the cooperation
of their animals during diagnosis.
It is
quite fascinating to know that polar
bears open
their mouth to let the vet check their
teeth, penguins
voluntarily step on a scale so zookeepers
can weight them, tigers offer their tales to let the vet get a blood
sample, and diabetic chimpanzees voluntarily extend their
arms to receive their
daily injections.
But
it is even more fascinating to know all
those amazing
things happen because of mutual respect and cooperation
between zookeepers and animals that have been trained without any punishment.
While this
kind of training is
not new, it was
not accepted by zoos
until a few decades ago. It was Karen
Pryor, a biologist and dolphin trainer, one of the few
scientists that strongly promoted positive training
as an
effective way to deal with captive animals.
Practitioners of her training
method, known as clicker training, are increasing quickly.
Positive training should be part of enrichment programs of every current
zoo and aquarium in the world.
Hopefully, it will become a standard part of zoo procedures in the
following years.
While training shouldnt be the only way of
environmental/behavioral enrichment, it certainly can play an important
role in any enrichment program.
Hopefully, environmental and behavioral enrichment
guidelines will
find grater acceptance beyond zoos and aquaria. It would be great to
find those guidelines while reading books about dogs, cats,
hamsters or any other pet. I believe this will happen soon.
Meanwhile, keep yourself away from polar
bears with dental caries.
Rodrigo Trigosso is the
editor in chief at
http://www.dog-training-tutorial.com where you can find great
info on canine training and behavior.