From an early age, author Kiki Opal faced a host of challenges. Her single mom battling multiple sclerosis and later dying. A father who isn’t there. Opal her

A guide to this fossil-rich area of Spain: “Likely to become a landmark reference in dinosaur ichnology.” —James O. Farlow During the Early Cretaceous, la

“Outstanding. This is a brilliant work by the best in the field. Watching a great tracker at work can feel like watching a magician, but this book demystifies

In the early morning hours of May 18, 1980, the pristine scenery around Washington's Mount St. Helens was shattered by a powerful explosion that devastated its