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Humans, like most of the other [[apes]], lack external [[tail]]s, have several [[blood type]] systems, have [[opposable thumb]]s, and are [[sexually dimorphic]]. The comparatively minor anatomical differences between humans and [[chimpanzee]]s are a result of human [[bipedalism]]. As a result, humans are slower over short distances, but are among the best long-distance runners in the animal kingdom.<ref>{{cite news| url=http://www.nytimes.com/2009/10/27/health/27well.html | work=The New York Times | title=The Human Body Is Built for Distance | first=Tara | last=Parker-Pope | date=October 27, 2009}}</ref><ref name="O'Neil">{{cite web|last=O'Neil|first=Dennis|title=Humans|url=http://anthro.palomar.edu/primate/prim_8.htm|work=Primates|publisher=Palomar College|accessdate=6 January 2013}}</ref> Humans' thinner body hair and more productive [[sweat gland]]s help avoid [[heat exhaustion]] while running for long distances.<ref>{{cite web|last=John|first=Brenman|title=What is the role of sweating glands in balancing body temperature when running a marathon?|url=http://www.livestrong.com/article/514545-what-is-the-role-of-sweat-glands-in-balancing-body-temperature-when-running-a-marathon/|publisher=Livestrong.com|accessdate=6 January 2013}}</ref>
As a consequence of bipedalism, human females have narrower [[birth canal]]s. The construction of the [[human pelvis]] differs from other [[primate]]s, as do the [[toe]]s. A trade-off for these advantages of the modern human pelvis is that [[childbirth]] is more difficult and dangerous than in most [[mammal]]s, especially given the larger head size of human [[babies]] compared to other primates. This means that human babies must turn around as they pass through the birth canal, which other primates do not do, and it makes humans the only species where females require help from their conspecifics{{clarify|date=May 2014}} to reduce the risks of birthing. As a partial [[evolution]]ary solution, human fetuses are born less developed and more vulnerable. Chimpanzee babies are cognitively more developed than human babies until the age of six months, when the rapid development of human brains surpasses chimpanzees. Another difference between women and chimpanzee females is that women go through the [[menopause]] and become [[Infertility|unfertile]] decades before the end of their lives. All species of non-human apes are capable of giving birth until [[death]]. Menopause probably developed as it has provided an evolutionary advantage (more caring time) to young relatives.<ref name="O'Neil"/>
=== Anatomija ===
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