Animal cells are the building materials of all creatures, from goldfish to Siberian tigers. Inside each cell are genes that help predict the animal's health, appearance, and performance.… More →

Learn all about different kinds of vile animals. Discover fascinating facts, from fish that are known as vacuums with teeth to why some lizards spurt blood from their eyes. Amazing photos and More →

Learn all about different kinds of vile animals. Discover fascinating facts, from fish that are known as vacuums with teeth to why some lizards spurt blood from their eyes. Amazing photos and More →

Children love to read about different kinds of animal families. In this fascinating new book, simple text explains how animals behave toward their young in different and sometimes surprising… More →

Children will be fascinated by the different ways in which animals grow and change from the time they are embryos to the time they are adults. This amazing book explains what a life cycle is… More →

This delightful new book shows the exciting changes some animals go through as they grow up. Children will learn how some animals are born live, and others hatch from eggs. Then, as living… More →

How in the world do you classify the more than one million species in the animal kingdom? This fact-packed book divides animals into the major phyla, including chordates, arthropods, and… More →

More than 98% of Earth's animals are invertebrates. Invertebrates do not have backbones or internal skeletons, but some have hard coverings. Insects, spiders, worms, snails, and most ocean… More →

Some Archaea thrive in extreme places around the planet such as in thermal pools, hot vents at the bottom of the sea, extremely salty water, and even in underground oil reserves. Others are… More →

Bacteria are microscopic organisms with a cell structure that is very different from that of the other kingdoms. Traditionally classified according to their shape, scientists now use DNA… More →