The 1909 discovery of bones protruding from a sandstone mountain in Utah led to the unearthing of other remains and proved to be one of the greatest fossil discoveries of the century.

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Caroline Arnold always loved books, but as a child she never thought of writing as a career. Born in Pittsburgh, she grew up in Minneapolis and studied art at Grinnell College and the University of Iowa. It was only after my children were born that I became acquainted with children's books and it occurred to me that I could use my training to become a children's book illustrator. I soon realized that I needed a text to go with the pictures, and the more I wrote, the more I realizedthat I liked writing as much as or more than drawing. I've always been fascinated by the natural world and love to go to the parks and museums. Perhaps that is why so many of my books are about scientific topics." Arnold is now the award-winning author of more than 100 books for children. She lives in Los Angeles with her husband, a neuroscientist, and teaches writing at UCLA Extension. For more information visit www.carolinearnoldbooks.com."

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