Note 32 — CRIMINALITY.
Henry P. (Henry Pomeroy) Horton translation
How does it happen that some animal species are social while others are not? It is impossible to maintain with some authors that sociability increases according to the degree of development attained by the animal.32 Certain insects, for example, are endowed with pronounced social feelings, while the cat tribe and some kinds of birds are on the contrary unsocial. Nevertheless the latter occupy a higher place in the scale than the former. The explanation, then, must be sought elsewhere.33