A rare form of asexual reproduction where an offspring develops from only a male parent's genetic material, with no contribution from a female.
From Greek 'andro-' (male) + 'genesis' (origin/creation). The term emerged in 20th-century biology to describe unusual reproductive processes discovered in various organisms.
In some fish and insects, androgenesis creates clones that are genetically identical to the father, meaning offspring skip mom entirely—nature's most extreme paternity case.
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