Probably everyone knows that mammals can't produce viable offspring by parthenogenesis.

But there are reports of human chimeras (see: a human parthenogenetic chimaera) and it's known for mice to quite often develop parthenogenetic embryos that will not survive past the 10th day of gestation (see: birth of parthenogenetic mice that can develop to adulthood).

So, how often does parthenogenesis happen in mammals and how long do parthenogenetic embryos survive? I have heard an estimate that 0.01% of human blastocystes are parthenogenetic with gestations always ending in miscarriage before the 3rd month, but I couldn't find any source for this claim.


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