Sleep Soundly: Images of Primate Nests

Orangutan climbing

Orangutan climbing down a tree after a good night's rest.

(Image credit: Adam van Casteren)

Orangutan climbing down a tree after a good night's rest.

Orangutan nest

Orangutan nest viewed from above

(Image credit: Adam van Casteren)

Orangutan nest viewed from above

Bent branch

Orangutans bend growing branches to make their nests.

(Image credit: Adam van Casteren)

Orangutans bend growing branches to make their nests.

Orangutan Nest

An orangutan nest high up in the forest canopy.

(Image credit: Adam van Casteren)

An orangutan nest high up in the forest canopy.

Orangutan Nest

Researchers find a lazy orangutan, still sleeping in nest.

(Image credit: Adam van Casteren)

Researchers find a lazy orangutan, still sleeping in nest.

Researcher and orangutan nest

A researcher up in the trees by an orangutan nest.

(Image credit: Adam van Casteren)

A researcher up in the trees by an orangutan nest.

Orangutans in the trees

Orangutans up in the trees

(Image credit: Adam van Casteren)

Orangutans up in the trees

Orangutans in the trees

Orangutans in the trees.

(Image credit: Adam van Casteren)

Orangutans in the trees.

Chimpanzee in nest

A chimpanzee lounging in his nest.

(Image credit: Kathelijne Koops)

A chimpanzee lounging in his nest.

Researcher in chimp nest

A researcher taking over a chimpanzee nest.

(Image credit: Kathelijne Koops)

A researcher taking over a chimpanzee nest.

Chimp nest

A chimpanzee in his nest.

(Image credit: Kathelijne Koops)

A chimpanzee in his nest.

Jennifer Welsh

Jennifer Welsh is a Connecticut-based science writer and editor and a regular contributor to Live Science. She also has several years of bench work in cancer research and anti-viral drug discovery under her belt. She has previously written for Science News, VerywellHealth, The Scientist, Discover Magazine, WIRED Science, and Business Insider.