GROUP TAKEOVER BY A NATAL MALE HOWLING MONKEY (ALOUATTA-PALLIATA) ANDASSOCIATED DISAPPEARANCE AND INJURIES OF IMMATURES

As part of a long-term study on howling monkey behavior and social dyn amics, a known natal male was observed taking over his group from his putative sire. Due to the accidental death of one of the adult males, this natal male had matured in a one-male group and had never observed juvenile male emigration nor adult male immigration and associated be haviors. Nevertheless, the behaviors associated with the takeover were indistinguishable from those of an immigrant male including disappear ance of immatures, one of whom was found with extensive injuries. Whil e it cannot be said that the natal male inherited these behaviors from his presumed father, it can be said that he exhibited species-typical behaviors associated with male takeover in the absence of observation al learning.