“Stepping-sticks” and “seat-sticks”: New types of tools used by wild chimpanzees (Pan troglodytes) in Sierra Leone
Rosalind AlpVolume:
41
Year:
1997
Language:
english
Pages:
8
DOI:
10.1002/(sici)1098-2345(1997)41:13.0.co;2-#
File:
PDF, 122 KB
english, 1997