Here are entered works on groups of different animals interacting in the same habitat. Works on societies of animals with a highly structured social life are entered under Animal societies. Works on physically interconnected animal organisms having a common ancestry through asexual reproduction are entered under Animal colonies.
Here are entered works on natural shelters and homes that animals build for themselves, such as burrows, dens, lairs, lodges, etc. Works on the shelters and structures that humans construct and provide for wild or domestic animals are entered under Animal housing. --subdivisions Habitations and Nests under individual animals and groups of animals, e.g. Fishes--Habitations; Fishes--Nests