Various species exhibit parthenogenesis under (sometimes unusual) circumstances https://en.wikipedia.org/wiki/Parthenogenesis https://en.wikipedia.org/wiki/Part

Various species exhibit parthenogenesis under (sometimes unusual) circumstances https://en.wikipedia.org/wiki/Parthenogenesis https://en.wikipedia.org/wiki/Parthenogenesis No evidence of human parthenogenesis ('virgin birth') is known. The immaculate conception was the conception of _Mary_, who was born without Original Sin (that's what makes it immaculate), in order to be clean enough to carry Jesus aand bear a virgin birth. The whole prior sentence should be sprinkled with 'allegedly' appropriately in every clause.