Asexual reproduction in which an embryo develops from a female gamete (egg) without genetic contribution from a male, though sperm may stimulate development.
From Greek 'gyne' (female) plus 'genesis' (origin or creation). Discovered in early 20th-century biology as scientists studied unusual reproductive mechanisms in fish and amphibians.
Some fish and frogs can essentially clone themselves from their own eggs—a sperm triggers development but contributes no genes, giving the female complete reproductive autonomy that's astounding!
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