Fly Babies Inherit Traits From Semen of Mom's Past Lovers

For flies at least, a sexual fling in their youth can come back to haunt them, even if they’ve found a new mate.

It turns out, ex-lovers have a lasting impact in the world of nerelid flies: A female fly’s offspring can physically resemble a previous mate that is not their genetic father. Scientists believe this represents a new form of non-genetic inheritance.
Fly Flings
Scientists knew that the nutrition larval male nerelids receive impacts the size of their own offspring later. So the

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