Contact: John Delaney
Wildlife Conservation Society
Caption: From 1995 until 2007, the team followed the lives of 19 adult male western lowland gorillas and their family groups from observation platforms with telescopes and cameras, tracking the number of females each male mated with, and the number of offspring produced by each adult male and their survival.
Credit: Thomas Breuer/WCS
Usage Restrictions: One-time usage only. Must use with the following credit: Thomas Breuer/WCS.
Related news release: Bigger gorillas better at attracting mates and raising young