1. Hinde (1970
2. Crook sees primate behavior "as being largely'shaped' by the environment. The habitat, physical and social, is, as it were, nature'sSkinner box providing locally characteristic types and frequencies of natural learningtrials in complex schedules that inter-relate to pattern individual behavior as a whole"(1970b: 130).130
3. Jay, 1965: 556556
4. Barnett, 1968)
5. Heredity, environment, and the question "how?"