All humans on earth today may differ widely in their facial features, colour, height, etc. Yet, they belong to a single species Homo sapiens. Give one reason why they are not considered belonging to different species.
All humans on the earth today may differ widely in their facial features, colour, height, etc. Yet they belong to a single species Homo sapiens as they can interbreed amongst themselves and reproduce offsprings that are similar to the parent, exhibiting parental features and are normal.
Species are organisms of a specific kind wherein members can interbreed amongst themselves so as to produce younger ones that are fertile. Consequently, though humans differ in their characteristics, they can still breed to produce fertile offsprings.