Triadic and collaborative play by gorillas in social games with objects Joanne E. TannerRichard W. Byrne Original Paper 12 January 2010 Pages: 591 - 607
Tits use amodal completion in predator recognition: a field experiment Kateřina TvardíkováRoman Fuchs Original Paper 04 February 2010 Pages: 609 - 615
Characteristics of implicit chaining in cotton-top tamarins (Saguinus oedipus) Charles LocurtoMatthew GagneLauren Nutile Original Paper 07 February 2010 Pages: 617 - 629
A modified mark test for own-body recognition in pig-tailed macaques (Macaca nemestrina) Sara MacelliniPier Francesco FerrariAnnika Paukner Original Paper 11 February 2010 Pages: 631 - 639
Chimpanzees (Pan troglodytes) accurately compare poured liquid quantities Michael J. Beran Original Paper 10 February 2010 Pages: 641 - 649
Erratum to: Chimpanzees (Pan troglodytes) accurately compare poured liquid quantities Michael J. Beran Erratum 18 March 2010 Pages: 651 - 651
A positional coding mechanism in pigeons after learning multiple three-item lists Damian ScarfMichael Colombo Original Paper 11 February 2010 Pages: 653 - 661
Donor payoffs and other-regarding preferences in cotton-top tamarins (Saguinus oedipus) Jeffrey R. Stevens Short Communication 04 February 2010 Pages: 663 - 670
Rational maximizing by humans (Homo sapiens) in an ultimatum game Phillip SmithAlan Silberberg Short Communication 04 February 2010 Pages: 671 - 677
