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Thursday, September 13, 2007 12:00 AM

Fear of a female planet

Are chemicals making Inuit males an endangered species?
Carol Lloyd

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  • Thursday, September 13, 2007 09:38 AM

    XX and XY

    I'm confused. Doesn't the sex determination come from the sperm, which comes from the male? If more females are being born, then that means the males are creating more X sperms than Y sperms.

    Another possibility is that XY embryos are for some reason not as viable as XX embryos. Maybe this is where the estrogen-like chemicals are coming in.

    Frankly, if the sex of a fetus is actually being changed (XY to XX) in the womb, then I'm officially really freaked out.

    —Mr Smith Read Mr Smith's other letters

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