If this were true, why haven't they found ancient dog food factories?
Of course I know you're joking, as the very notion of commercial dog food is only about a hundred years old. Prior to that, dogs just ate scraps from butchers (mainly bones), wild game processing scraps, and what was left of what folks prepared for themselves to eat (table and kitchen scraps), supplemented by whatever the dogs could catch in the yard.
We kept the native's names for the types of salmon here.
Chinook, Soceye, Coho, pink (ok we made that one up) and Chum.
Chum are numerous and pretty easy to catch but they degrade pretty quickly when they hit fresh water to spawn.
Chum translation = dog salmon
