&gt; Males have penises and females don&#x27;t, does a scientific study need to be conducted to prove this point?<p>What you&#x27;ve described is what I refer to as &quot;sex&quot; while totally ignoring the topic of gender. <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Sex_and_gender_distinction" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Sex_and_gender_distinction</a><p>I&#x27;m not sure what your politics are, but a lot of people who have traveled down this path in a conversation ended up expressing very intolerant opinions towards transgendered people. If you <i>do</i> feel contempt for someone whose gender identity and&#x2F;or assumed gender role doesn&#x27;t match their biological sex, please don&#x27;t share that opinion with me.