If you're just starting to learn about animals and wildlife, a good first step is to gain an understanding of the basic groups of animals. Although scientists identify dozens of groups of animals, it helps to keep things simple at first. So in this article, we'll focus on these six basic groups:
amphibians
birds
fish
invertebrates
mammals
reptiles
Once you have a understanding of these groups, you'll be on your way to grasping the basic characteristics of virtually every animal on the planet.