Studying the visual recognition abilities of rodents

The visual process that allows humans to recognize the gender or emotional state of another person is very sophisticated. Until recently, only primates were believed able to perform such complex operations as object recognition. ...

Chickens 'one-up' humans in ability to see color

(PhysOrg.com) -- Researchers at Washington University School of Medicine in St. Louis have peered deep into the eye of the chicken and found a masterpiece of biological design.