Chicago Zoo Welcomes Newborn Baby Gorilla Marking 4 Generations11 year old gorilla Kamba gave birth to her son Zachary in early September, joining a family of 4 western lowland gorillas, an endangered species.Get more newsLiveonPrintSept. 25, 2015, 9:03 PM UTC / Updated Sept. 25, 2015, 9:03 PM UTC