Biochem Evolution of Reproductive systems

For this evolutionary project, my group studied the evolution of the reproductive system for different organisms. We compared multiple living creatures reproductive systems and for our final animal we chose a lion. Lions seemed fairly plausible to choose because they are mammals and they just look cool. Aside from looking cool, the lion, as well as the other organisms taught us that many living creatures are similar. No matter how they look, more often than not they are fairly similar with only subtle differences.