At nine o'clock this morning, I put a pair of binoculars around my neck and stuffed a small red notebook into my pocket before setting off with a group of four other UCSC students led by UCSC Museum of Natural History curator Chris Lay. I had signed up for this Natural History of the UCSC Campus one-day class last quarter, but it had been cancelled due to rain. Today, even with the threat of snow, the class was still on. It was chilly but fortunately not raining as we set off from the UCSC Recreation Department toward the East Field. After introductions, Chris asked if there was anything we particularly wanted to see. An environmental studies major named Shannon, who I talked with throughout the hike, said "any mammals other than deer and ground squirrels." We all laughed because moments before we had seen about 25 ground squirrels on the hill by Stevenson College, and deer are ubiquitous throughout the campus. Chris said he hoped today's hike would take us places w...