This article is from the WSSF 2015 AFRMA Rat & Mouse Tales news-magazine.

Did You Know?  Researchers from the University of Georgia found that lab rats possess the ability to think about what they know or don’t know. This process is known as metacognition. This was the first time it was demonstrated that rats had this ability.

Published in the journal Current Biology, Volume 17, Issue 6, 20 March 2007, Pages 551–555, Metacognition in the Rat.