Agates, when cut and polished, are among the most beautiful of semi-precious stones. Scotland is one of several countries rich in agates. The National...
This work includes specially selected photographs with extended captions that explain where and how each image was taken. The images chosen feature a...
This text traces the world migration routes of over 100 species. An illustrated introduction explains flight techniques, feeding, biology and navigation...
This 'Eyewitness' guide offers a concise, comprehensive treatment of birds. The individual themes of each spread make up a complete visual story and a...
This exploration of findings from research groups worldwide reveals sharks to be much more than just mindless, killing machines. It shows how sharks are...
Discover the most exceptional creatures on Earth with this reference book which features world record holders from each of the main animal groups, including...
Each title in this series offers concise, comprehensive treatment of its subject area, and combines an exciting introduction to new areas of knowledge...