My name is Kelley Lu and I am an undergraduate student. When I’m in the lab, I count the number of neutrophils, lymphocytes, monocytes, eosinophils, basophils, and trypanosomes in the blood slides that the marmot team retrieved from marmots on site. I count the number of each type of cell until I reach a 100 sum between the neutrophils and lymphocytes. One of the difficulties I encounter when I’m working is the “unknown cell”. Occasionally, I will bump into a cell that I can’t identify—it looks like a neutrophil, but it also looks like an eosinophil… or sometimes a lymphocyte-looking cell that looks like a monocyte. Other times, the slide will have too many cells, and such a thick layer that I can’t discern between the different types of cells, or the slide will have too few cells, and there won’t be enough cells to count. My favorite part of working in the lab is clicking the counter, because I love the sound it makes when it clicks. It’s also a small triumph every time I click the counter, because each “click” simply means I’m one cell count closer to reaching the 100 sum for the neutrophils and lymphocytes.