what are some primate groups
Primates are particularly useful taxa to address this question because their group sizes are highly variable, not only within, but also between species. Intraspecific group size for red colobus (Procolobus rufomitratus), for example, varies between 12 and 150 members (Chapman & Chapman 2000a).f the ecological constraints model is outlining pressures that generally influence primate group size and if deviations from this expected group size result from social pressures, it will be an exciting time in this area of research because it raises a number of interesting questions.