One of the most important processes in the evolution of new species is reproductive isolation. Without it, closely related species may reproduce with one another and eventually unite into one species, eliminating the diversity of life that we see today.…

This type of isolation occurs after mating between members of two different species, forming a zygote which leads to the formation of a hybrid. These hybrids are often infertile, hence unable to reproduce. This type of production of hybrid isn’t…

This category of isolation occurs before the zygote formation can take place, where mating of the organisms does not occur. There are different forms of pre-zygotic isolation which include temporal, behavioural, mechanical, and gametic isolation.

The definition of reproductive isolation is “the inability of a species to successfully breed with related species due to geographical, behavioral, physiological, or genetic barriers or differences.” A crucial component of speciation is reproductive isolation. It refers to the controls…