A happy lab rat? Check the ears!

What do you think of when you hear the term "lab rat"? Chances are, you might not picture an animal happily playing rough-and-tumble with a human handler and then coming back for more. Scientists have traditionally studied ...

Study suggests rats smile with their ears

(Phys.org)—A team of researchers with the University of Bern in Switzerland has found that as part of feeling happiness, rats undergo a slight physical change. As the team notes in their paper uploaded to the peer-reviewed ...

Study on pesticides in lab rat feed causes a stir

French scientists published evidence Thursday of pesticide contamination of lab rat feed which they said discredited historic toxicity studies, though commentators questioned the analysis.

Rats found able to recognize pain in other rat faces

(Phys.org)—A team of researchers working in Japan with affiliations to several institutions in that country, has found that lab rats are able to recognize pain in the faces of other rats and avoid them when given the opportunity. ...

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