What are the characteristics of animals?

Most animals are made up of more than one cell, have cells that group into tissue, reproduce sexually, are capable of movement and ingest other organisms to obtain energy. There are exceptions to many of these characteristics, however. read more

Animal Habitats. Most animals inhabit the seas, with fewer in fresh water and even fewer on land. Animal Bodies. The bodies of most animals (all except sponges) are made up of cells organized into tissues. Each tissue is specialized to perform specific functions. In most animals, tissues are organized into even more specialized organs. read more