Two Siamang gibbons are to be moved to Bristol as part of a Europe-wide endangered species programme.
The Siamangs' natural habitat is under threat
The gibbons, yet to be named, will be housed at Noah's Ark Zoo Farm.
Head keeper Chris Wilkinson said: "Siamang gibbons are very noisy, famous for making loud calls in the forests of Malaysia, Thailand and Sumatra."
They are part of a European Endangered Species Programme because of the destruction of the habitat in their native countries.
The breeding programme keeps a record of where endangered species are and how many, and ensures genetic diversity among breeding pairs.