The woodland animals celebrate Groundhog Day until Mr. Sly Fox casts a shadow and forecasts winter, causing mass confusion in Gobbler's Knob. Finally, all the animals are convinced of an early spring when Phil's wife, Philomena, gives birth to nine newborn groundhogs.

Ever wonder how fault lines, caves, and volcanoes were formed and how people came to live on or next to them? Earth's Underground Structures uses cutaway illustrations to examine some of the world's most interesting natural underground structures created by Earth's forces and processes.

What lies beneath your city or town? Underground City Systems uses cutaway illustrations to explore the world's great sewer and water systems. Readers will be amazed by such startling facts as the "fatberg" causing problems in London, England's sewer system, and toilet-swimming sewer rats that plague all sewage systems. Readers will also learn about other underground services and systems, including heating and cooling, power and cable, as well as...

"The Underground, the Metro, the Tube, the Subway--whatever you call it, underground transit is a mark of a modern city public transportation system. Packed with historic and contemporary photographs, this compelling book will grab readers with an interest in subways and railways. Also included are underground escape routes and abandoned underground tunnel systems."--Provided by publisher.