the development of new traits in a species occurs when a unique combination of traits is passed down from some members of that species to their offspring
evolution has not effect_of_creating_new_species hallmark_of_different_species is inability_to_mate_and_reproduce. babies is offspring. offspring is relative. recruit is newcomer. people has offspring hallmark_of_different_species is not inability_to_mate_and_reproduce. nature is trait. offspring is consequence. evolution has effect_of_creating_new_species