Sunday, 12 November 2017

Doggone: Your Best Friend Is Red-Green Colorblind

By Laura Geggel, Senior Writer | November 8, 2017 06:06am ET

If you're ever deciding between throwing a red ball or a green ball for your dog to fetch, know this: It doesn't matter to Fido because dogs are red-green colorblind, a new small study suggests.

Researchers in Italy tested 16 dogs on their color vision and found the canids had red-green colorblindness, a condition known as deuteranopia that affects about 8 percent of men and 0.5 percent of women with Northern European ancestry, according to the National Eye Institute.

The finding suggests that, "if you are planning to train your dog to fetch a ball that fell on the green grass of your garden, think of using a blue, and not red, ball," said study lead researcher Marcello Siniscalchi, a professor in the Department of Veterinary Medicine at the University of Bari, in Italy. [10 Things You Didn't Know About Dogs]

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