since the ranges of unis/bts overlap, i wonder how these natural integrade looking animals get labelled. when imported, if it looks more uni, it's called a mottled uni and vice versa with the mottled bt? i suppose the belly is somewhere in between also? unis have that horizontal black speckling and bts have clean bellies. interesting. wish someone would do some mitochondrial dna tests on these two ssp and the integrade forms to see how related they actually are.