On Monday, February 27th, after an 8.5 month gestation period, Artis Zoo Gorilla Dafina gave birth to a healthy baby boy. Artis, The Netherlands' oldest zoo, is already home to 10 gorillas, two of which were born last year. There are plenty of experienced moms for Dafina to learn from, although she appears to be having no trouble playing the part. From birth, gorilla mothers typically hold their young tightly to their belly buttons, making it difficult for keepers to determine their sex, often for weeks. By a stroke of luck, Dafina lifted the young baby in the presence of keepers late yesterday, giving them a clear view that the tiny baby is in fact a boy. He's been given the name Douli, after a place in the Gabon state of Africa.