This long-held myth is false. Humans sense colours better than dogs. They see predominantly yellow and blue.
1 Dogs only see black-and-white.
Cold, wet noses indicate dog health, whereas warm or dry ones may not. Healthy dogs may have warm, dry noses.
2 Healthy dogs have warm, moist noses
This usual dog age estimate is oversimplified. Younger dogs age faster. Breed and size effect dog ageing.
3 Seven human years equal one dog year
Most sick dogs graze, not eat grass. They do it naturally unless unwell or overeating.
4 Sick dogs eat grass.
Some dogs waving tails show enthusiasm, not friendliness. Scared or worried dogs wag their tails. Context and body language convey dog moods.
5 Friendly dogs always wag
Like physical ageing, dog mental ageing varies. Some older dogs are peaceful, while others are puppy-like.
6 Dogs age cognitively and physically
Old pack hierarchy and dominance mindset caused this mistake. Dogs prefer secure environments to dominant owners. Dog dominance loses to moderate positive reinforcement.