Do dogs need dog coats?
Do you know if your dog needs a coat? They generally have fur, with a few exceptions, as any dog owner knows. They certainly shed enough. However, sometimes the coat they were born with isn’t enough for their living conditions.
History of dogs and people
Centuries ago, when early dog relatives were in the wild, they were suited for the environment in which they lived. If they were near the equator, they didn’t need thick coats and didn’t have them. Likewise, the insulation would help them survive if they lived near the poles, so they had nice thick coats. Their dog coats were well suited to their homes.
Then they started hanging around people. People decided dogs could help them with their work, so they raised dogs for those various jobs by selective breeding, choosing parents specifically to pass on the desirable traits.
The more dogs were developed, the less they resembled their ancestors. The result has been that, while dogs are very skilled at their assigned jobs, they aren’t suited to live in the wild. They might have traits from their ancestors who lived in the tropics while residing in the northern reaches or vice versa. For that reason, they need us to help them by providing gear, like dog coats, that help them exist comfortably in the places we have them living.