Apes communicate about absent and displaced objects: methodology matters

Chimpanzee Vocal Signaling Points to a Multimodal Origin of Human Language

(2011) Jared P. Taglialatela et al.   PLoS One

BIZARRE chimpanzees do not represent “the chimpanzee”

(2010) David A. Leavens et al.   BEHAVIORAL AND BRAIN SCIENCES

Multimodal communication by captive chimpanzees (Pan troglodytes)

(2009) David A. Leavens et al.   ANIMAL COGNITION

Tufted capuchin monkeys (Cebus apella) show understanding of human attentional states when requesting food held by a human

(2009) Yuko Hattori et al.   ANIMAL COGNITION

The performance of bonobos (Pan paniscus), chimpanzees (Pan troglodytes), and orangutans (Pongo pygmaeus) in two versions of an object-choice task.

(2009) Nicholas J. Mulcahy et al.   JOURNAL OF COMPARATIVE PSYCHOLOGY

Visual attention and its relation to knowledge states in chimpanzees, Pan troglodytes

(2008) Megan J. Bulloch et al.   ANIMAL BEHAVIOUR

Taking development and ecology seriously when comparing cognition: Reply to Tomasello and Call (2008).

(2008) Christophe Boesch   JOURNAL OF COMPARATIVE PSYCHOLOGY

Understanding of visual attention by adult humans (Homo sapiens): A partial replication of Povinelli, Bierschwale, and Čech (1999).

(2008) Emily Thomas et al.   JOURNAL OF COMPARATIVE PSYCHOLOGY