No hymen no diamond
https://youtu.be/tFlCU3VpeeQ?si=i7rxr_MR26c2bZhP
"The Surgeon-General of New York"
"If pure-blooded mares or bitches have been once covered by an inferior male, in subsequent fecondations the young are likely to partake of the character of the first male, even if they be afterwards bred with males of unimpeachable pedigree."
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Lord Morton bred a white mare with a wild quagga stallion,[a] and when he later bred the same mare with a white stallion, the offspring strangely had stripes in the legs, like the quagga.[9]
@Gonzo17
"Fetal cells have been documented to persist and multiply in the mother for several decades.[2][3]"
https://en.wikipedia.org/wiki/Microchimerism