A Place for Pets & Animal Lovers
Can dogs see colour?
It is not true that dogs are completely colourblind. While dogs do not have
the same color vision as humans, they are able to tell yellow from blue.
Like a human with red-green colourblindness, they are unable to tell the
difference between red and green.
The reason for this limited range, in both the colourblind human and the
dog, is that there are only two kinds of colour receptors in the retinas of
their eyes. While most humans have three kinds of colour cells, with three
different receptor molecules sensitive to blue, greenish-yellow, and red,
dogs only have receptors for yellow and greenish-blue.
Canine eyes also lack another human trait: the fovea, an area especially
dense with detail-sensing cells. As a result, their detail vision is not as
good as ours. But they make up for this by having much better night vision
and greater sensitivity to movement.
Copyright © 1997 by David Klein. Do you have any problems with
your pet? Then why not send your problem to DAVID THE DOGMAN.
David is a Canine Behaviourist who works and lives in Marbella,
Spain. Tel/Fax (00345) 2883388. His web site is located at:
http://www.thedogman.net. David has his own radio and TV shows,
and writes for many newspapers and magazines. David has been
working with dogs for many years and started his career in
Israel, working on the Border Police. He has been involved in
all forms of training, including air sea rescue, air scent
work,
and has trained dogs for finding drugs. David has devoted the
past 10 years to studying behaviour and the very passive
approach. He does not use choke chains, check chains, or any
form of aggression.
David The Dogman is available for private consultations in your
home, for further details telephone; Tel; (95) 2883388
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