👉 The term "Cancroidea" is an area in the field of zoology that focuses on the development and evolution of aquatic animals, particularly fish. It encompasses a diverse range of species that are found in freshwater environments, including aquatic plants, algae, and bacteria. This group includes fish like eel, bream, and carp, but also includes a variety of other aquatic animals such as snails, crabs, and mussels.
