Classification of animals In the planet there are many kids of animals in different terrestrial and aquatic habitats. These animals can be classified in many different forms. For example, animals with backbones are named vertebrates and animals that don’t have a backbone are called invertebrates. The vertebrate animals are also divided into five (5) categories. The first category is the mammals; these animals have hair or fur, are warm- blooded and give birth. They are vertebrates. The second category is the birds. The birds have feathers and wings, are warm-blooded and lay eggs. They are vertebrates too. Thirdly we have the fish, fish are cold-blooded, have scales and gills, lay eggs and can breathe underwater and have a backbone. There are also reptiles, these vertebrates have scales and dry skin, they lay eggs and are cold blooded. Finally we have the amphibians, they are cold-blooded; they are vertebrates and can live on land and water. Find the differences and the characteristics in common for the following categories of animals. Classification of animals In the planet there are many kids of animals in different terrestrial and aquatic habitats. These animals can be classified in many different forms. For example, animals with backbones are named vertebrates and animals that don’t have a backbone are called invertebrates. The vertebrate animals are also divided into five (5) categories. The first category is the mammals; these animals have hair or fur, are warm- blooded and give birth. They are vertebrates. The second category is the birds. The birds have feathers and wings, are warm-blooded and lay eggs. They are vertebrates too. Thirdly we have the fish, fish are cold-blooded, have scales and gills, lay eggs and can breathe underwater and have a backbone. There are also reptiles, these vertebrates have scales and dry skin, they lay eggs and are cold blooded. Finally we have the amphibians, they are cold-blooded; they are vertebrates and can live on land and water. Find the differences and the characteristics in common for the following categories of animals.