How Ichthyosaurs Adapted to Life in Ancient Oceans
Ichthyosaurs represent one of the most remarkable examples of convergent evolution in the fossil record. These magnificent marine reptiles, whose name means “fish lizards,” dominated Earth’s oceans for over 150 million years during the Mesozoic Era. Despite being air-breathing reptiles that evolved from terrestrial ancestors, ichthyosaurs developed adaptations so specialized for aquatic life that they ...












