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the behavior of two captive specimens of the lowland gorilla, gorilla gorilla gorilla (savage & wyman).this report describes the behavior of two pre-adolescent lowland gorillas in the new york zoological park during the summer of 1948. oka, then an eight-year-old female, and makoko, a ten-year-old male, were observed in their regular living cages when alone and when placed together. a check-list was prepared and regular half-hour periods of observation were systematically made. significant behavioral items were compared for the sessions when the animals were alone and when they were together. com ...194918268801
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