On July 6th I posted a link describing the ability of some dogs to smell the sweat odor of some patients with Covid 19. The use of dogs to smell diabetes amd malignancies has been mentioned from time to time.
As I was surfing the web this morning, I ran across an article concerning the use of dogs by archeologists to find graves, hundreds of centuries old, and animal bones hundreds to thousands of years old. The use of corpse dogs has been known for years, but the archeologists have extended the time horizons to many many years
We often talk about the success of Homo sapeins in conquering the globe and establishing humans in a large variety of environments, but usually such discussion omits our canine partners who made it possible.
I am suggesting that much of humans success in the previous millenia was made possible by our partnership with dogs - whether to track game, stand guard about camp at night, carry burdens, pull sleds, or many other tasks. We humans seem to continue to find new uses for the basic skillsets of dogs. Watching dogs herd sheep will easily convince you of their formidable intelligence.
An eastern European homily was that villages without dogs don't last very long....
Feel free to include other discussions of canine skills that aid the dog-human partnership.