Sir David communicates with members of the Biami tribe to learn more about them.
Watch the full program on BBC One 7pm Sunday 08/05/2016 UK.
Subscribe to BBC Earth: http://bit.ly/BBCEarthSubBBC Earth YouTube Channel: http://www.youtube.com/BBCEarth
BBC Earth Facebook http://www.facebook.com/bbcearth (ex-UK only)
BBC Earth Twitter http://www.twitter.com/bbcearth
Visit http://www.bbc.com/earth/world for all the latest animal news and wildlife videos
This is a channel from BBC Worldwide who help fund new BBC programmes.