Research team sheds light on 'rightie' or 'leftie' behavior in a scale-eating cichlid

Behavioral laterality, or left- or right-handedness, has been reported in many animals, including humans, chimpanzees, toads, rats, mice, and invertebrates such as crustaceans and insects. The existence of this phenomenon even in lower animals suggests it arose early in life's evolutionary history and that it confers survival advantages. However, exactly how it is acquired in the early life-stages is not known. A recent article in PLOS ONE reported how a team of Nagoya University-led researchers