That&#x27;s of course incorrect. Many species mate in private for security purposes, including building up elaborate territorial systems to enhance that security. Many species of cats and birds do so for example.<p>I also don&#x27;t think you understand at all why humans have sex in private. Hint: it&#x27;s primarily for security purposes. In the animal kingdom, in the more frequently compared species to humans - chimps, gorillas, etc - weaker males are often murdered or otherwise prevented from mating, mating is by force and not consensual, it&#x27;s ruled by the most dominate males. The dominant males breed at a drastically higher rate than the weak males. Is that how you want to compete as a human, by your capability to deliver violence? How do you think that will work out in practice for most men and most women today? Have you ever seen what happens to women in a violent or agitated crowd in some more dangerous parts of the world - and how do you think sex in that same crowd, or any crowd, would turn out? Turns out security is an excellent reason for having sex in private.<p><a href="http:&#x2F;&#x2F;cogsci.stackexchange.com&#x2F;questions&#x2F;1567&#x2F;why-do-humans-have-sex-in-private" rel="nofollow">http:&#x2F;&#x2F;cogsci.stackexchange.com&#x2F;questions&#x2F;1567&#x2F;why-do-humans...</a>