gorilla talk (00:03:46)

Craig Sholley of AWF explains the nuances of gorilla communication, from the "belch vocalization" of a content silverback to the angry "pig grunt" of a female feeling threatened on her own turf.

• grant: $50,000 - African Wildlife Foundation - Rwanda

  To work with the people of Africa to ensure the wildlife and wild lands of Africa will endure forever by providing wildlife management training opportunities for African nationals.

  topic: animals

  location: volcanoes national park