Huge groups of humpback whales have been seen gathering in the Southern Hemisphere, and it's leaving scientists and people on the internet a little confused.
Usually, humpbacks are pretty solitary creatures, but a study published on March 1 in the journal PLOS One details multiple "super-groups" of whales gathering in 2011, 2014 and 2015.
Image: JEAN TRESFON/PLOS ONE
