Ichthyosaurs were fascinating marine reptiles that lived during the Mesozoic Era, around 250 to 90 million years ago. They resembled modern-day dolphins with their streamlined bodies, long snouts, and large eyes, which helped them hunt in the ocean. These creatures were not dinosaurs but were part of a different group of reptiles that adapted to life in the water. These ancient animals were excellent swimmers, using their powerful tails to propel themselves through the sea. Ichthyosaurs gave birth to live young, similar to sharks, rather than laying eggs on land. Fossils of ichthyosaurs have been found in many parts of the world, providing valuable insights into their life and environment.