Recently, there have been advances in scientific research that have led to the discovery of taste receptors that are 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 a minor taste sensation (although not as close as our mouth). Through a simple laboratory test on rats, scientists were able to deactivate the taste receptors to see if it would have a greater impact on them. In an attempt to breed rats that did not have functioning taste receptors on their testes, scientists found that the sperm was rendered deformed and incapable of fertilizing, rendering the rats infertile. The drug the researchers used to block these taste receptors was the same type of drugs used to treat high cholesterol in humans. This finding may help scientists discover ways to treat infertility in humans, as it could be as simple as damaged taste receptors (styles). Another consequence of this discovery is a newer way that could lead to a male birth control pill. Deactivating these taste receptors lasts considerably longer than regular birth control pills in women and, unlike a vasectomy, is much easier to reverse. Along with this possible attempt at male birth control, several other trials have been carried out recently, as currently available methods of pregnancy prevention for males do not have high actual success rates due to misuse. 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 sperm output. The idea is to relax the muscles that push the sperm so that… middle of paper… beer, this being an evolutionary advantage for males who required more oxygen for their generally more muscular bodies. Compared to modern males, ancient Neanderthal males had much larger body masses than today, including a larger nose. Male nose size tends to deviate from female nose size during puberty, as the entire body grows. Works Cited Choi, Charles. "Because boys have bigger noses than girls." Science live. November 18, 2013. Network. November 27, 2013. Lewis, Tanya. “Male and female brains are wired differently, scans show.” Huffington Post. December 3, 2013. Web. December 3, 2013.Stili, Ruth. “The testes have taste buds that can detect sweet flavors and are vital for fertility” Daily Mail UK. July 20, 2013. Web. November 2, 2013. Tarico, Valerie. “Best Birth Control for Men: 8 Promising Possibilities.” Reality check right. October 12, 2013. Web. November 23. 2013.