If there is no cellular factor manager, have they noticed that this need is an obligation over time, and have they made it fun? And how do we enjoy it? Why do we like it when we touch the skin with our partner, why should we enjoy it in an event called sex? And how can those who do not get happiness and pleasure from this pleasure do this?
The evolution of the concept of sexuality that we are familiar with as vertebrates has been the result of an additional 1.5 billion years of evolution after the evolution of sexual reproduction. The sexuality (sex) that we are talking about requires two active members, one of which is outside the body of the male reproductive tract, a "donor" organ, (the other "penis"), and the other is the "recipient" area of the female reproductive tract (ie, the vagina). ) should have. In addition to humans and other mammals, some birds, amphibians, reptiles and fish are among the creatures that have this concept of sex. Our sex, unlike seaweed sex, is irrelevant and independent from air or an external element (well, at least "external elements" are possible in some sex behavior of people). In us, the meeting of sperm and egg occurs with internal fertilization. This seemingly more reliable but deceptively complex internal fertilization has been present among vertebrates for almost 400 million years.
