Thread:HoundTheDestroyer93/@comment-25808351-20190730005232/@comment-27950421-20190809163919

It's not there appearance. By definition, if a population of organisms that are close enough genetically that they can interbreed and produce viable offspring (offspring that can survive independently and reproduce) then they are the same species.

Mamono can interbreed with humans and the resulting offspring can survive independently and are completely fertile. They are the same species as us.