Quote:
Originally Posted by exotic_idiot
Yup, like those ribbon, swallow genes? 
Next time call X-guppy"X-men" liao... heheee  |
Well....I have naturally occuring swallows that appear in my Japan blue line.
Naturally occuring because original parents did not have it, and for many generations also dun have. But after 4-5 years, some swallow tails just appear.