colony of imperial cormorants
Colony of imperial cormorants (Phalacrocorax atriceps), Tierra del Fuego, Argentina.
colony
animal society
colony, in zoology, a group of organisms of one species that live and interact closely with each other. A colony differs from an aggregation, which is a group whose members have no interaction. Small, functionally specialized, attached organisms called polyps in cnidarians and zooids in bryozoans form colonies and may be modified for capturing prey, feeding, or reproduction. Colonies of social insects (e.g., ants, bees) usually include castes with different responsibilities. Temporary breeding colonies are...