cohabitation (usu. of a romantically involved couple); living together
aquatic (life); living in the water
coexistence; living together; symbiosis; paragenesis
almost living together; spending most nights with one's partner
terrestrial (life); land-dwelling
living gregariously (of animals); living in flocks, herds, colonies, etc.
aquatic animal; aquatic fauna
rookery; breeding grounds; nesting place
living a quiet life in seclusion away from the masses
living in tranquility; retiring to the countryside; retirement house
old home; former home; old nest