"Sycamore seed siblings Merwin and Louise must use their wits and imaginations to navigate a mysterious and often dangerous world, filled with talking plants, monsters, meteors, and the fear of never finding the right conditions to set down roots and become big trees"--

In two parallel stories, an intelligent female member of a prehistoric tribe becomes instrumental in advancing the lot of her people, and the daughter of a paleontologist is visiting him on a dig in Africa when important fossil remains are discovered.

Rhythmic text and illustrations follow a paleontolgist and his crew as they dig, assemble and exhibit dinosaur bones.

What are fossils and how do they form? What kinds of fossils exist, and where are they found? This introduction to fossils covers the basics from the discovery of dinosaurs to the information fossils reveal about Earth's prehistoric past. "This book introduces readers to fossils"--

Learning about paleontology and fossil hunting under renowned scientist Dr. Iris Prez while attending summer camp in Colorado, the Aldens investigate an outbreak of strange events that local superstition attributes to a bigfoot creature roaming the valley.

The reader's choices determine whether three friends will survive after being mysteriously transported back in time to when huge insects swarmed the skies and fearsome dinosaurs ruled. --

"The Case of the Story Rock follows characters Scout and Daisy as they learn about fossils. The book features Field Notes with more information about fossils and a Nature Craft for kids to make at home."--

The reader's choices determine whether two classmates will survive after being mysteriously transported back in time to when exotic plants towered overhead and giant rat-like creatures scuttled on the ground. --

The reader's choices determine whether three friends will survive after being mysteriously transported back in time to when the climate was cold and saber-toothed cats and wooly mammoths roamed the land. --

"While exploring the Triassic era, the X-Venture Xplorers are split in two- not by rampaging creatures or primal danger, but by simple squabbling! Stone and Emily continue on foot, while Rain and Sean take the vehicle for a spin! However, the era's residents see this as an opportunity to score some bite-sized snacks! And things are only going to get worse!" --