HealthAre Dogs Color Blind? Blue, Yellow, and the Myth
Dogs are not fully color blind. They see blue and yellow well and struggle with red and green. What that means for toys, grass, and night vision.
Dr. Janet Greenfield
11 min read·
Health & symptoms
Health pages here separate a normal habit from a reason to call the veterinarian who sees that animal.
Dr. Janet Greenfield, BVMS, CVA, CERP, writes each live guide. Facts come from named public sources. These pages do not replace the veterinarian who sees that animal.

4 live guides in this category. Each one is a full article with sources.
HealthDogs are not fully color blind. They see blue and yellow well and struggle with red and green. What that means for toys, grass, and night vision.
Dr. Janet Greenfield
11 min read·
HealthCoprophagia is common. VCA says rule out parasites and malabsorption first. Why puppies do it, adult new onset, and what actually helps.
Dr. Janet Greenfield
11 min read·
HealthMost dogs eat grass without being sick first. VCA and AKC on the vomit myth, fiber, lawn chemicals, and when grazing needs a veterinarian.
Dr. Janet Greenfield
10 min read·
HealthA little paw licking is grooming. PetMD on allergies, infection, and the swelling or limp that means go in soon.
Dr. Janet Greenfield
10 min read·
Direct answer first, then the definition, the range a source actually published, and the limit: this is owner information. We do not invent dosages or a homemade safe-amount chart.
See every published guide on the blog.