Recently, advances have been made in scientific research that have led to the discovery of taste receptors located outside the mouth. These taste receptors are scattered throughout the body, with large concentrations in the testicles and anus. Sweet and Umami taste receptors are present in this area and can present with a minor taste sensation (although nowhere near as close as our mouths can get). Using a simple lab test on rats, scientists were able to turn off taste receptors to see if it would have a major impact on them. When attempting to breed rats that lacked functioning taste receptors on the testicles, scientists discovered that the sperm were deformed and unable to fertilize, rendering the rats infertile. The drug the researchers used to block these taste receptors was the same type of drug used to treat high cholesterol in humans. This discovery may help scientists discover ways to treat infertility in men, as it may be as simple as damaged taste receptors (Styles). Another consequence of this discovery is a new way of possibly leading to a male contraceptive pill. The deactivation of these taste receptors lasts much longer than traditional birth control pills in women and, unlike a vasectomy, is much easier to reverse. Along with this possible attempt at male birth control, many other processes have been carried out recently, as currently available methods of male pregnancy prevention do not have high actual success rates due to poor use. An attempt by Dr. Nnaemeka Amobi and his team to produce a male contraceptive pill involves the idea of ​​a hormone-free pill that can decrease or eliminate the emission of semen. The idea is to relax the muscles that propel sperm so that...... middle of paper ......ales, providing an evolutionary advantage for men who needed more oxygen for their generally more muscular body. Compared to modern humans, ancient Neanderthals had much larger body masses than today, including larger noses. Male nasal size tends to deviate from female size during puberty as the entire body grows. Works Cited Choi, Charles. “Why do guys have bigger noses than girls.” Science Live. November 18, 2013. Internet. November 27, 2013. Lewis, Tanya. “Male and female brains are wired differently, analyzes show.” HuffingtonPost. December 3, 2013. Web. December 3, 2013. Styles, Ruth. “The testicles have taste buds capable of detecting sweet flavors – and they are vital for fertility” Daily Mail UK. July 20, 2013. the web. November 2, 2013.Tarico, Valérie. “Better birth control for men: 8 promising possibilities.” » HR RealityCheck. October 12, 2013. The web. November 23. 2013.