Surrogate uteri (exaggerated brood parasitism) as an adaptation?
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Under what circumstances would a species develop an adaptation to employ surrogate wombs of their own species or others?
The species implants its zygotes/eggs in the uterus/brood pouch of a surrogate mother/father, of its own species or another, which gestates and births to the offspring.
This is not endoparasitism, parasitoids, or external egg laying. This is an exaggerated form of brood parasitism.
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