What’s an ichthyosaur? If you see a picture of one, you’ll likely recognize it. It’s a prehistoric creature that looks like a dolphin but really is a reptile. The Ichthyosaur Page provides an excellent overview for understanding these creatures. You’ll learn that:

• They swam in the sea, when dinosaurs were walking on the land, about 250 million years ago.
• They disappeared about 90 million years ago.
• They had flippers.
• They had big eyes — in fact, one type had the biggest eye ever recorded for any living creature!