Have you ever seen a fossil? Maybe you’ve held one in your hands and touched your fingertips on the ridges imprinted into the rock. You can probably even recognize the beautiful swirled shape of an ammonite. Maybe you recognise the distinctive teeth of ancient dinosaurs. But for most of human history, we had no idea what created these strange rocks.
It’s hard to find dinosaur skeletons. Sometimes they’re so small you can easily miss them, and sometimes they’re so big they just look like any other rock on the beach. But it was even harder to find dinosaur skeletons when nobody knew what they were looking for. Can you imagine trying to complete a jigsaw without ever seeing the front of the box? That is what the world’s first paleontologists were doing. The more they found, the more they could understand what our planet looked like long before humans. But it wasn’t an easy task.
When she was just twelve years old, Mary discovered the first complete Ichthyosaur. It took her months and months to carefully chip away at the rock. But when she finally revealed the skeleton of the “fish-lizard,” the 10-meter-long creature created a sensation across the world! Until then, people had believed the planet wasn’t very old at all. But this discovery (and many others like it) started to show that the Earth had been home to life for millions of years. Then, in 1823 she discovered the Plesiosaurus, and then the Pterodactyl in 1828! She collected hundreds, maybe even thousands, of samples throughout her lifetime.