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 ...

Before most women know they're pregnant, an embryo has already begun organizing itself into the structures that will shape a developing body. Scientists have few opportunities to study those earliest ...

The effects of light exposure during incubation on embryonic development and hatchling traits in lizards Light is an environmental factor that is known to profoundly affect embryonic development in ...