Group Of Different Animals Pictures. Animals can be classified by different basic categories as follows: Invertebrates are animals which do not have a backbone.
Row of different animals and pets. The digestive systems of annelids stretch from the mouth to the anus, and different sections of the system have different roles. Pallava bagla / getty images.
A to z animals with.
The first animals to evolve, as far back as a billion years ago, invertebrates are characterized by their lack of backbones and internal skeletons as well as their relatively simple anatomy and behavior, at least compared with those of most vertebrates. Children are to cut out the animals and then stick them into the correct group. For many animals, particularly domesticated ones, there are specific names for males, females, young, and groups. On this page is a list of the main types of animals.