hmm........that sinteresting i have heard of stories, such as......
.....there was two type of platy both the normal wild green viraiety, both lived in absolutle trancualty, but 100's of miles apart, then scientists found these untouched fish, and put a male and female of each type into the same tank. from this we have all the different coloured platy today.
evadenatlly, if this is true, i would assume be the same for guppy.
however i doubt you will find such a guppy in nz, because of adaptation to our waters, so there colour shape finaige etc might have changed.
Shae 250