50 Years Ago Environment 50 years ago, chemical pollutants were linked to odd animal behavior Excerpt from the September 18, 1971 issue of Science News Chemical pollutants can disrupt aquatic creatures’ delicate sense of smell, scientists have found. A chemical common in sewage runoff (shown) has been shown to disrupt some fishes’ ability to form schools. Armastas/iStock/Getty Images Plus Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Aina Abell September 10, 2021 at 9:00 am Sea life’s chemical senses Science News, September 18, 1971 For fish and other underwater life, a sensitivity to chemicals plays the same role as the sense of smell does for land animals.…