Colorado Parks & Wildlife Research Library

Text and numerous detailed illustrations introduce and explain the scientific principles and workings of hundreds of machines. Includes new material about digital technology.

"From bestselling and award-winning author Sara Pennypacker comes a beautifully wrought, utterly compelling novel about the powerful relationship between a boy and his fox. Pax is destined to become a classic, beloved for generations to come. Pax and Peter have been inseparable ever since Peter rescued him as a kit. But one day, the unimaginable happens: Peter's dad enlists in the military and makes him return the fox to the wild. At his grandfather's...

"Robins are the most familiar and beloved of all birds, found throughout North America and celebrated as one of the first signs of spring. But there's a lot about them that most people don't know! In this visually stunning picture book that features comic-book panels combined with painterly illustrations, Eileen Christelow tells the story of two young robins' first year, and reveals plenty of little-known facts that are sure to captivate young naturalists....

"A history of modern forensic science from the first test for arsenic poisoning in the 1700s to criminal profiling, fingerprinting, blood splatter analysis, DNA evidence, and all the milestones in between"-- "Blood, Bullets, and Bones provides young readers with a fresh and fascinating look at the ever-evolving science of forensics. Since the introduction of DNA testing, forensic science has been in the forefront of the public's imagination, thanks...

A treasury of nose-wrinkling facts, quizzes, recipes and trivia includes entries about how a group of skunks is called a "stench," how snail slime was once an ingredient in cough syrup and more.

While Sophie Mouse and her forest friends are playing in the snow one day, they accidentally wake a hibernating hedgehog named Pippa, who is a little grumpy at first, but Sophie, Hattie, and Owen show her all the fun things to do in wintertime.

Ash Tyler hopes to make his psychologically scarred father proud by training for his town's Stag Chase, but when he meets the mysterious Bone Jack, dark energies take root and the world as he knows it is upended.

Aki's The Nature Girls is a picture book starring an adorable troupe of girls exploring different biomes--the ocean, the desert, the tundra, the grasslands, the forest--and meeting all the cute animals that inhabit them.

Two mice explore the fields and woodlands around them, observing many animals before finally going home to sleep in their tiny nest.

A young bear cub, who is alone in the world, and Old Bear, who is grumpy and tired of living alone, meet and discover what they have been missing.