A modern must-read for anyone interested in protecting our earth and its incredible wildlife, Gone tells fascinating stories of 11 extraordinary extinct animals from around the world. This is a mindful call to conserve what we have now before it is lost forever. Learn what made these species unique; what their habits and habitats were; who discovered (or killed) them; what remains of them; and where we can view what survives of them today. Beautifully...

"Dinosaurs ruled the Earth for more than 180 million years. Find out how they lived and see how they were wiped out by an asteroid strike."--

Meet Scratch, Martie, Lug, and Quito, members of a secret organization called R.O.A.R., or the Rescue Ops Acquisition Rangers. When their boss, Dr. Z, finally calls on them for their first big mission, the team heads to Siberia to retrieve an ancient unicorn horn from the thawing permafrost. Scratch is thrilled at the chance to prove his worth to Dr. Z--but as soon as they land, the team runs into a mysterious enemy determined to take them down.

The small desert town of Perfection is under attack from giant prehistoric man-eating worms that can sense any sound. Now the few left alive must get out of town before they end up as worm food.