Not sure what you are wanting to hear? Twins are very rare, having a few sets of twins in a single clutch would be very rare too...but if its consistent with the pair of dragons you are breeding, then there could be a genetic component contributing to higher likelihood of twins occurring.

As for increased value of the twin babies or even their non twin siblings..I still don't think they will fetch any more than the same sort of babies would in a non- twin clutch. Twins aren't a morph, all they really provide is extra mouths to feed and/or more animals to sell. If you are breeding a very valuable morph then it is just a bonus.
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PHLdyPayne

Forum Princess