The breeding successes were the main reason for Apenheul’s expansion and gradual acquisition of other primate species. The gorilla, the biggest of all apes, arrived in 1976. Three years later, in 1979, the first gorilla babies were born, followed by many more. Every baby was raised in the gorilla group by the mother, which was very unusual in those days! In addition to attracting more visitors, the success brought primatologists (primate scientists) from all around the world to see “the completed masterpiece”.