Lars Krutak knows about ritual pain. The 38-year-old anthropologist has dozens of tattoos and decorative scars given to him by the tribal people he studies in such far-flung places as Hawaii, the Philippines and Indonesia.
Anthropologists often travel the world for their research, but this discovery involved just a six-block stroll from the Boulder campus: a rare stone tool cache containing traces of camel and other animal proteins from 13,000 years ago.
