Find out how reptiles evolved from early amphibians, and the adaptations that allowed them to thrive on dry land.
- Amniotic eggs enclose embryos in multiple membranes and a semi-permeable shell.
- Amniotic eggs allow reptiles to reproduce on land, rather than having to return to water to lay their eggs.
- Unlike amphibians, reptiles hatch from their eggs as fully formed, miniature versions of the adult.
- Reptiles like dinosaurs, plesiosaurs and pterosaurs dominated life on Earth during the Mesozoic era.