Related references
Note: Only part of the references are listed.
Letter
Multidisciplinary Sciences
Insight learning or shaping?
Johan Lind et al.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2009)
Article
Multidisciplinary Sciences
Insightful problem solving and creative tool modification by captive nontool-using rooks
Christopher D. Bird et al.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2009)
Review
Multidisciplinary Sciences
The mentality of crows: Convergent evolution of intelligence in corvids and apes
NJ Emery et al.
SCIENCE (2004)