I is for ... ichthyosaur!

Ichthyosaurs are extinct marine reptiles. They lived in the seas at the same time that dinosaurs roamed the land.

Fact: Mary Anning was a famous fossil collector. She lived in Lyme Regis in Dorset and discovered many skeletons of ichthyosaurs and other marine reptiles.

You may not have heard of her, but do you know the tongue twister that was written about her?