I have just returned from a three-week safari in Uganda. One of the highlights was a morning spent climbing over bushes in Kibale Forest to watch chimpanzees. They are boisterous and lively. They squabbled and shrieked and ran past us in the brush, then ambled up a tree to swing from vines. It was as if we were not there, standing in the forest quietly watching. The Alpha Male kept them all in line. He would settle a fight or chase off a trouble-maker then lie down in the forest, legs crossed, for a rest.
Quite an amazing three hours.