If we want to bring the Creator into the discussion, how much consideration should we give to Gen.1:11, 12 -
1:11 God said, "Let the land produce vegetation: plants yielding seeds according to their kinds, and trees bearing fruit with seed in it according to their kinds." It was so.
1:12 The land produced vegetation – plants yielding seeds according to their kinds, and trees bearing fruit with seed in it according to their kinds. God saw that it was good. (NET)
Notice the ". . . according to their kinds . . ." Hmmm, doesn't sound much like gene splicing to me.