Animal Cognition: Aesop's Fable Flies from Fiction to Fact
Current Biology, Volume 19, Issue 17, pgs R731-R732
by Alex H. Taylor and Russell D. Gray
A new study shows that rooks are able to spontaneously drop stones into
a tube of water to obtain a floating worm. This sophisticated problem
solving raises intriguing questions about the use of imagination in
animals.
Read the article.