what is sex & how it evolved
To begin with, let me take you to the early days when the universe exploded from an infinitesimally small hydrogen atom and expanded to an infinitely huge Universe, then billions of years later our Sun formed and later its planets. It even took millions of years for earth to become something where life could just begin.
At first small bacteria were born in the ocean which were single celled and unisexual.
Millions of years passed, things went on evolving, mother earth felt when the baby is born only through a single parent, they inherit all the characters of their parent means they are like clones or identical of their parent. When all individuals carries the same biology, in case if there were any climatic change, like the temperature rises, then the whole species might die.
This led to the need to have “Variations” among individuals, and I have reached to the most important part of this article, where “Sexual Reproduction ” is going to begin for the first time in the history of earth.
“Sexual Reproduction” means where two parents (male and female) are involved to give birth to their baby.