| | Falcons Falcons are a group of birds of prey that includes 37 species. Falcons fall into several general groups including the kestrels, the hobbies and their relatives, the peregrine falcon and... Read more | Facts About Amphibians Amphibians are a group of vertebrates that include three groups: newts and salamanders, frogs and toads, and caecilians. Find out more about amphibians.... Read more | Communities and Ecosystems Nature is a mosaic of complex interactions and relationships between animals, plants, and their environment. Individual organisms belong to populations, species, communities, and ecosystems. Energy flows from one organism to... Read more | Amphibians Amphibians are a group of backboned animals that includes salamanders, newts, caecilians, frogs and toads. There are between 5,000 and 6,000 species of amphibians alive today. The first amphibians arose about 370 million years ago during the Devonian Period. The articles listed below provide information about the characteristics, classification and evolution of amphibians. | | | | Animals / Wildlife Ads | | | | More about Animals | | | | More from About.com | | | | | | Financial Emergencies An unexpected change in your financial situation can be incredibly stressful. Here's how to cope. More>
| | | | Retirement Planning Learn the top five things you need to do in order to start building a retirement nest egg. More>
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