David:How else might we get new species? > > BBella: In my opinion, it is more likely "new" species that just suddenly showed up could have been brought here by more advanced species that either created them or periodically gathered different species from other planets and brought them here. For me, that's the simplest answer. Though I have know idea if it's true.-I assume you mean from planets in other solar systems. I suspect we are the only current life in the universe.