|MadSci Network: Zoology|
I have four goldfish(Carassius auratus). They all have 2 tails.Fantailed and twintailed are two words for this. "Fancy" goldfish are specially bred goldfish, and most have two tails. Since the "Fancy" part is genetic, I thought the fantailed part was genetic. I don't think it is twinning,because as far as I know,twinning is not genetic. I have never seen a baby Fantail,but I am sure fish breeders don't divide embryos.Please tell me why some goldfish have two tails and if other animals could spawn a germ line similar to this. Thank you.
Re: Fantailed Goldfish have two tails. Why? Does a gene account for that?
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