Differences Between Fungi and Animals
Some fungi are single-celled organisms, such as the yeasts. All metazoans, on the other hand, have multiple cells. Even the simplest animal, the sponge, consists of many cells specialized for different tasks.
All animals are motile, that is, able to move independently, at least at some stage of development. Even sessile, immobile animals such as sponges and corals have motile larvae. Fungi, on the other hand, are not able to move independently.
Many types of tissue are unique to animals, such as muscles and nerves.
All of these differences are either superficial (such as the fact that some fungi are single-celled) or they are a result of evolutionary changes that took place after the fungus and metazoan lineages diverged (such as motility). Cladistic analysis has demonstrated that despite the differences, animals and fungi are more closely related to each other than they are to plants.