Spectacular animal towns

"Welcome to the coral reef--a giant city under the sea. Here you'll discover how tiny coral polyps form stony skeletons that become large 'buildings' rising up from the ocean floor. You'll also find out how clownfish, parrotfish, and other colorful residents depend on the reef--and on one another--to survive"--P. [4] of cover.

Explores a subterranean prairie dog town in Texas estimated to have about 400 million prairie dogs. Describes how the town's inhabitants communicate, find food, and raise their young. Also discusses how the town is structured for community life and threats to prairie dog towns.