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Usually, we end up studying the genes in our lab experiments. This time, however, we will be doing our science work on proteins. We're gonna do it with fish to determine the evolutionary connection between several fishies. We will compare similarities and differences in their proteins, create a family tree, and compare it to the work of actual evolutionary scientists who know what they're talking about. The actual material we use from the fish will be from his/her muscle fibers, myosin and actin to be exact.