Presents an introduction to frogs, discussing their physical characteristics, different types, eating habits, life cycle, and future threats to their existence.
They may be small, but foxes are among the fiercest hunters in the forest. These cunning creatures are smart and sure on their feet. Find out where they live, how they raise their families, and what i
There are about 25,000 known types of fishes in the world. From tiny cleaner fish to giant bluefin tuna, ocean wonders come in all shapes, sizes, and colors. Learn all about the amazing survival metho
With their eye-popping colors and beautifully patterned wings, butterflies get a lot of attention for their appearance. But did you know that butterflies can taste and smell with their feet? Or that s
The splendor of New York's most famous green space comes alive in this essential companion for nature lovers and travelers to New York. In more than 900 color images, a leading nature writer and a lon
Philadelphia Trees is a pocket-sized resource for identifying the native trees, commonly encountered exotics, and popular ornamentals of the Philadelphia metropolitan area and adjacent counties in Pen
