It’s dolphin o’clock. How can one tell? The National Geographic Animal Sounds Wall Clock blares out an appropriate animal sound that corresponds to the animal of the hour. Starting with 12:00 lion and progressing to 11:00 wolf, this hanging timepiece features 12 different sounds (one on each hour) from the mammal kingdom, ranging from the endangered Bengal Tiger to the American Bison. Each clock is accompanied by an educational booklet that provides detailed information about each animal featured, and is designed to educate children or facilitate interaction between parent and child. The Animal Sounds Wall Clock was launched in 2005.

With Colonial America as the backdrop, this true-story account of the life of Daniel Boone captures his childhood on Native American lands, his role as a fighter in the French and Indian War, and his adventures trailblazing the Wilderness Road.

This poetry collection gives voice to the emotions of soldiers and civilians — whether Northerners or Southerners, famous or obscure, dead or alive — in the time of the Civil War.

Excavated writing tablets, a famous mosaic and various artifacts are all clues to the history of the Italian people, which is discussed through archaeological research in this book.

This book reveals what researchers have learned about the Pueblo people through petroglyphs and studies of prehistoric sites in Colorado, Utah, Arizona and New Mexico.

This book written by Douglas Wood and illustrated by Andy Wagner comes with a free “Mama Mirabelle’s Home Movies” DVD and follows the adventurous thoughts of Bo the cheetah, Karla the zebra and Max the elephant as they plan for their day-care provider to return home.

This book tells a tale of survival, following Washington’s army to winter at Valley Forge. It features excerpts from a soldier’s diary and one doctor’s accounts of awful sickness, cold and hunger, as well as a time line, maps and images.

This book by photographer Norbert Rosing offers full-color pictures that relay his experience with and observation of playful cubs and magnificent predators in the Arctic. The book includes a facts section and instructions on how readers can help in the face of global warming.

In this engaging book, author and photographer Flip Nicklin, along with wife, Linda, give readers an up-close and personal look at dolphins as they swim, herd fish, use sound to help them see and more.