Vol.22, No.2 DECEMBER 2015

<NEWS>
Mahale Research 50th Anniversary Event in Kigoma, Tanzania
Takuya Matsumoto

<NOTE>
A Case of Infant Carrying against the Mother’s Will by an Old Adult Female Bonobo at Wamba, Democratic Republic of Congo
Nahoko Tokuyama

<NOTE>
Savanna Chimpanzees (Pan troglodytes schweinfurthii) Consume and Share Blue Duiker (Philantomba monticola) Meat in the Issa Valley, Ugalla, Western Tanzania
Sebastian Ramirez-Amaya, Edward McLester, Fiona A. Stewart, & Alex K. Piel

<NOTE>
A Wild Chimpanzee’s Newly Invented Play Pattern towards an Artifact after a Short Exploration
Masaki Shimada

<BOOK INFO>
Mahale Chimpanzees: 50 Years of Research