(AP) — An endangered species of monkey has given birth to twins at the Topeka Zoo.

Devra, a 3-year-old golden lion tamarin, gave birth to twins Wednesday. She and the babies’ father, Charlie, arrived in Topeka in December as part of the Golden Lion Tamarin Species Survival Plan.

Both tamarins are first-time parents.

The babies’ genders haven’t yet been released. The zoo says it will post updates and daily pictures of the baby monkeys on its Facebook page.

The National Zoo says golden lion tamarins are native to Brazil’s coastal rain forests, and have been threatened by habitat destruction. In the early 1970s, there were fewer than 200 alive. Their population has since rebounded to about 1,600 monkeys living in the wild.