Why are dogs called K-9s?
It is text-speak for "canines" which is from the Latin word "canis", meaning "dog".
That is usually a "police dog" term, but it is derived from the word "Canine", which is what dogs are. Scientifically, they belong to a group of animals called canids or canidae. A single animal out of this group is called a canine. So, canine can be shorted to K9. Maybe because it looks "cool", mabe because it's sometimes practical. Just like some people write "before" as "B4". "Canine" or "K9" is another term to…
Preferably, on a regular schedule. My K9s and War Dogs eat at 8:00 A.M. and 4:00 P.M. with the amount adjusted for how heavily they've been working. Barring the necessity of special diets, most important is keeping them on a regular schedule. They can tolerate large deviations when needed. But, vary it only if required and supplement with treats until you can next feed 'em. Be consistent.
Dogs that live in the wild are called 'wild dogs', simply 'dogs', or called by their species like 'wolf','coyote'. Common breeds without owners are called stray dogs. Mixed breeds of unknown lineage are called 'muts'. A domesticated dog that has lived with humans and later for whatever reason lives in the wild is called a 'feral dog'. Rouge "Dagos" live in Australia. Hyenas live in Africa.