How to solve a mechanical problem: the relevance of visible and unobservable functionality for kea

Chimpanzee problem-solving: contrasting the use of causal and arbitrary cues

(2011) Daniel Hanus et al.   ANIMAL COGNITION

Tool choice on the basis of rigidity in capuchin monkeys

(2011) Héctor Marín Manrique et al.   ANIMAL COGNITION

Flexibility in Problem Solving and Tool Use of Kea and New Caledonian Crows in a Multi Access Box Paradigm

(2011) Alice M. I. Auersperg et al.   PLoS One

Kea, Nestor notabilis, produce dynamic relationships between objects in a second-order tool use task

(2010) Alice M.I. Auersperg et al.   ANIMAL BEHAVIOUR

Animal Tool-Use

(2010) Amanda Seed et al.   CURRENT BIOLOGY

Orangutans (Pongo spp.) may prefer tools with rigid properties to flimsy tools.

(2010) Kristina R. Walkup et al.   JOURNAL OF COMPARATIVE PSYCHOLOGY

Great apes select tools on the basis of their rigidity.

(2010) Héctor Marín Manrique et al.   JOURNAL OF EXPERIMENTAL PSYCHOLOGY-ANIMAL LEARNING AND COGNITION

An Investigation into the Cognition Behind Spontaneous String Pulling in New Caledonian Crows

(2010) Alex H. Taylor et al.   PLoS One

Kea (Nestor notabilis) consider spatial relationships between objects in the support problem

(2009) A. M. I. Auersperg et al.   Biology Letters

Selection of Effective Stone Tools by Wild Bearded Capuchin Monkeys

(2009) Elisabetta Visalberghi et al.   CURRENT BIOLOGY

What You See Is What You Get? Exclusion Performances in Ravens and Keas

(2009) Christian Schloegl et al.   PLoS One

Rooks perceive support relations similar to six-month-old babies

(2009) C. D. Bird et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Do capuchin monkeys use weight to select hammer tools?

(2008) Cornelia Schrauf et al.   ANIMAL COGNITION

Do New Caledonian crows solve physical problems through causal reasoning?

(2008) A.H Taylor et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES