J Shell interviews Dr. Bob Crabtree, the founder and Chief Scientist for the Yellowstone Ecological Research Center in Bozeman, Montana. Bob holds his Ph.D. in Forestry, Wildlife and Range Ecology from the University of Idaho in Moscow and founded YERC in 1993 to provide unbiased research for a variety of agencies and organizations. He identifies himself today as a Systems Ecologist. In this interview, Bob talks about the various avenues of research the YERC is doing in the Greater Yellowstone Ecosystem and beyond.