Natural History Wanderings

ScienceDaily reported

Observational social learning of “know-how” and “know-what” in wild orangutans: evidence from nest-building skill acquisition.
Young orangutans master the art of building intricate treetop nests not by instinct alone, but by closely watching their mothers and peers. Researchers tracking wild Sumatran orangutans over 17 years discovered that “peering”—the deliberate act of observing nest construction—is the key to learning.

Read more Scientists uncover the secret to orangutan survival in the trees | ScienceDaily