Creationists have no problem, however, with speciation, or even the "evolution" of new genera in some instances, as long as such development does not extend to the "family" (dogs, cats, horses, etc.).
According to the Bible, all present land animals are descended from the "kinds" preserved on Noah's Ark during the Flood. "Every beast, every creeping thing, and every fowl, and whatsoever creepeth upon the earth, after their kinds, went forth out of the ark" (Genesis 8:19).