Karl Ammann / Ba'ka pygmy in Cameroon, West Africa being tested for Ebola virus after eating infected gorilla meat. Close genetic correlation between humans and apes means that many of the same viruses and parasite...

Karl Ammann / Ba'Aka pygmy child with empty plate, South East Cameroon. Once provided with extra meat for trade with their Bantu neighbours, today many of the pygmies' hunting grounds are empty - the result of incr...

Karl Ammann / Ba'Aka pygmy carrying the head of a gorilla killed for bushmeat, Central Africa.