Variation and context of yawns in captive chimpanzees (Pan troglodytes)

Title
Variation and context of yawns in captive chimpanzees (Pan troglodytes)
Authors
Keywords
-
Journal
AMERICAN JOURNAL OF PRIMATOLOGY
Volume 72, Issue 3, Pages 262-269
Publisher
Wiley
Online
2009-12-12
DOI
10.1002/ajp.20781

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