"The roots of this study date back to 1972 when researchers in Novosibirsk, USSR (now Russia), caught a large group of rats in the wilderness around the city. After bringing them into the laboratory, the researchers divided them into two groups. The first group included the most "friendly" rats – those that were not aggressive toward people. The second group included only the most aggressive rats – those that screamed, attacked and bit the researchers. Since then..."
Shared via AddThis
Posts
