Jane and the field staff continually revised methods of collecting
data as the research progressed. Today the Tanzanian field staff conducts
all the long-term monitoring of the recognized chimpanzees. Only three or
four graduate students from overseas work at Gombe at any one time. Since
1975 all data have been recorded in Swahili. Checklists were generally replaced
by narrative records of chimpanzee interactions kept over specific time
intervals. Click here to
view the Swahili notes.