Food mechanical properties and isotopic signatures in forest versus savannah dwelling eastern chimpanzees. - van Casteren, Adam; Oelze, Vicky M.; Angedakin, Samuel; Kalan, Ammie K.; Kambi, Mohamed; Boesch, Christophe; Kühl, Hjalmar S.; Langergraber, Kevin E.; Piel, Alexander K.; Stewart, Fiona A.; Kupczik, Kornelius (Communications Biology, 2018)