Tag Archives: wild cod
Oh, Give Me a Home Where the Wild Cod Roam
It took a week for Björn Björnsson to train 20 wild cod. In a compelling demonstration of classical conditioning, the aquaculture researcher at Iceland’s Marine and Freshwater Research Institute taught the fish to associate a low-frequency sound with a free meal. It only took another day for Björnsson—with the help of one of his trained fish—to teach another 19 wild cod. People might not think of cod as herd animals, but Björnsson says cod are adept at reading social cues to learn where to grab a bite. >click to read<12:10
