Earlier this month, Siamang mom and dad, Jamby and Jan (Jan is the boy), welcomed their first baby, which also marks the first baby Siamang for Zoological Center Tel Aviv Ramat Gan. Even though Jamby’s pregnancy lasted eight months, the healthy baby weighed in at just 170 grams (1/3rd of a pound)!

When these Siamangs first arrived at Zoo Tel Aviv, they were exhibited with the Orangutans but the match was not meant to be. Jamby and Jan felt the need assert their dominance over their gentle roommates. When keepers decided the Siamangs were being bullies, the red apes were relocated.

Siamangs are endangered in their native home of Southeast Asia due to habitat destruction.

Photo credits: Tibor Jäger