Prior to reading the article, I had never thought much about the external placement, or lack thereof, of the male scrotum. I was sure that it had always been that way, and there was no significant meaning for its placement. However, after reading the article, “The Scrotum is Nuts”, I agree more with the hypothesis of Michael Chance and Roland Frey, “The Galloping Hypothesis”. It is hypothesized that the external placement of the testes was due to the increase abdominal pressure from movement by mammals (Drew 2013). Roland Frey furthered argued that continuous disruptions of blood flow in abdominal veins could impair the process of spermiogenesis (Frey 1991). Michael chance added that the descent of the scrotum was an adaptation that reduced
