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Maroc Maroc - WN.COM - World - 05/Jan 23:53

How certain reptiles give birth instead of laying eggs

The reproductive biology of reptiles encompasses a wider range of strategies than is often assumed in general accounts of the group. Alongside species that deposit shelled eggs in terrestrial nests or concealed sites, many reptiles retain embryos within the body until development is complete and offspring are born alive. This pattern has been documented via anatomical, physiological, and field research across multiple evolutionary lineages. Interest in live-bearing reptiles has increased alongside broader studies of vertebrate reproduction, developmental plasticity, and maternal investment. Improved imaging techniques and comparative reproductive surveys have clarified how gestation proceeds...

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