I have heard of this in balls one other time. My boss told me this story about a ball python he had (and had her history for the 18 yrs since her import - she'd never been with a male) that laid a clutch of eggs. She laid it while she was in "hibernation" - so no one noticed the eggs for a while. When the eggs were discovered, she had been incubating them herself for a while, but, since she had never been with a male, the eggs were put in the freezer (they were, after all, probably infertile, right?!) For some reason, the eggs were slit open after they were frozen and - lo and behold - there were developing embryos in them! Now here's the really good part - this man had access to a lab and had the embryos tested and they tested genetically identical to the female! Thus, they had to be parthenogenically produced offspring, as these offspring are essentially *clones* of the mother.
I believe the paper is in the works...
