Amphibians

There are about 4,780 species of amphibians known to naturalists, and there may be 300 to 500 more that have yet to be discovered. In the United States and Canada there are only 250 species. The world’s amphibians, most of which live in tropical area - More>>

What Is a Bird?

Birds are warm-blooded creatures, like mammals, but they lay eggs, like most reptiles. All birds have feathers and wings, and most birds are able to fly. Birds are amazingly varied in their shapes, sizes, colors, and behavior patterns. There are more - More>>

What Is A Fish?

Fishes come in an amazing variety of shapes and colors, but they all have three important things in common: All fishes live in water, have fins, and use gills to get oxygen from the water. We have also included a few sea creatures -- some jellyfish a - More>>

What Is an Insect?

Insects and their relatives, including spiders and scorpions, belong to a huge group of animals called the arthropods. The main thing that all arthropods have in common is their hard outer coat, which is called an exoskeleton and protects their soft - More>>

What Is A Mammal?

Mammals live on land, at sea, in the air, and under the ground. All mammals, from bats to whales, share a number of important traits that make them different from other animals. Mammals are warm-blooded, they have fur or hair, and most mammals give b - More>>

What Is a Reptile?

Today there are 6,800 reptile species on earth; the major groups are alligators and crocodiles, turtles, lizards, and snakes. All reptiles are cold-blooded, which is why they warm themselves in the sun, and have bodies covered in dry, horny scales. S - More>>