Elephants know when they need a helping trunk in a cooperative task

Cooperative problem solving in a social carnivore

(2009) Christine M. Drea et al.   ANIMAL BEHAVIOUR

The performance of rooks in a cooperative task depends on their temperament

(2009) Christelle Scheid et al.   ANIMAL COGNITION

Vocalizations of wild Asian elephants (Elephas maximus): Structural classification and social context

(2009) Smita Nair et al.   JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA

Self-recognition in the Asian elephant and future directions for cognitive research with elephants in zoological settings

(2009) Joshua M. Plotnik et al.   ZOO BIOLOGY

Von Economo Neurons in the Elephant Brain

(2008) Atiya Y. Hakeem et al.   Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology

Cooperative problem solving in rooks (Corvus frugilegus)

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

Large brains and cognition: Where do elephants fit in?

(2007) Benjamin L. Hart et al.   NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS