Humpback whales are gathering in massive, densely packed “super groups” and nobody knows why https://t.co/bN2mDdVQ4x pic.twitter.com/NGCgF0AojT

— CNN (@CNN) March 17, 2017

IT BEGINS @CNN https://t.co/CLIHl8u9ZG

— Charles Johnson (@Green_Footballs) March 17, 2017