A trowel (/ˈtraʊ.əl/), in the hands of an archaeologist, is like a trusty sidekick – a tiny, yet mighty, instrument that uncovers ancient secrets, one well-placed scoop at a time. It’s the Sherlock Holmes of the excavation site, revealing clues about the past with every delicate swipe. Last weekend, I attended the UCLA Anthropology commencement celebration. As a professor, I spend much of my time conducting research, writing, mentoring students,…