One of the important features of the family territory is that it must be easily distinguished in some way from all the others. Its separate location gives it a uniqueness, of course, but this is not enough. Its shape and general appearance must make it stand out as an easily identifiable entity, so that it can become the 'personalized' property of the family that lives there. This is something which seems obvious enough, but which has frequently been overlooked or ignored, either as a result of economic pressures, or the lack of biological awareness of architects. Endless rows of uniformly repeated, identical houses have been erected in cities and towns all over the world. In the case of blocks of flats the situation is even more acute. The psychological damage done to the territorialism of the families forced by architects, planners and builders to live under these conditions is incalculable. Fortunately, the families concerned can impose territorial uniqueness on their dwellings in other ways. The buildings themselves can be painted different colours. The gardens, where there are any, can be planted and landscaped in individual styles. The insides of the houses or flats can be decorated and filled with ornaments, bric-a-brac and personal belongings in profusion. This is usually explained as being done to make the place 'look nice'.
In fact, it is the exact equivalent to another territorial species depositing its personal scent on a landmark near its den. When you put a name on a door, or hang a painting on a wall, you are, in dog or wolf terms, for example, simply cocking your leg on them and leaving your personal mark there. Obsessive 'collecting' of specialized categories of objects occurs in certain individuals who, for some reason, experience an abnormally strong need to define their home territories in this way.
2 December 2015
Desmond Morris, The Naked Ape (New York: McGraw-Hill, 1967), pp. 184-185: