Humans are dumb and predictable, we use it to learn.
So honestly one of my favorite parts about being an Anthropology Student and looking specifically into Paeleoanthropology is that we know the common human behaviors that have been done even though it like, damages our teeth and bones but we do it anyways and use that to determine things about us and others. One of these things is that Humans, even though it is damaging to our teeth tend to use our chompers as a Third Hand, like we hold onto so much stuff with it when we want to hold it steady or just dont have the room in our hands for it. We have been doing this hundreds of thousands of years and Paleoanthropologists in Spain have used that to determine if Homo Heidelbergensis, our Most Recent Hominin Ancestor(Basically the transition between Erectus and Sapiens) was mainly right handed or left handed. What they did was look at the damage marks fossilized teeth had, and saw the patterns, different damage patterns emerging if your holding say a bone in your teeth as you scrape the meat off of it with your stone tool. Weather your scraping with your left or right hand makes a distinctive pattern, and through that you can determine which hand they favored. As it turns out Heidelbergensis was largely Right handed! or at least the population that is in Sima De Los Huesos in Spain.
