Talk:Shirohebi/@comment-71.184.143.100-20150714155646/@comment-25035274-20150714164908

A sub-species is a variant that can reliably reproduce. For instance, holstaurs and hellhounds will pretty much always birth holstaurs and hellhounds. A mutant, on the other hand, 'may' produce others like itself, but will most likely give birth to the parent species. See Hobgoblin.