[Fichori]

"A species is a population that cannot produce fertile offspring with another population. A number of new species have been created in the lab, populations which are reproductively isolated from their parent populations."

If 2 humans, 1 man and 1 woman, are unable to have a child, does that mean that 1 of them is a difference specie and is not entitled to due process?

There is after all, a certain [percentage] population of humans that are unable to reproduce....

What about ring species, is it one specie, or two.

[Alter Kaker]

If 2 humans, 1 man and 1 woman, are unable to have a child, does that mean that 1 of them is a difference specie and is not entitled to due process?

Genetically all human beings are of the same species, regardless of whether or not they're reproductively fertile -- science looks at populations, not individuals, and no population of humans is reproductively isolated from any other. Your second question is a legal one, not a scientific one. I'm not a lawyer but I seriously doubt you'd have much of a case arguing that infertile people aren't human beings.