An observation made by a scientist studying baboons in Africa was featured on NPR. See below.
"The quiet was total. "I really wondered what was going on," says Smuts. The baboons didn't focus on any one thing. They all, or most of them, gazed down into the little pool right below them and hardly moved. There was no fidgeting, no touching or grooming, no discernible activity, just a communal "almost sacramental" contemplation. Smuts calls it a "sacred" quiet."
http://www.npr.org/templates/story/stor ... t=1&f=1007