AdvertisementThe biggest whales can eat the equivalent of 80,000 Big Macs in one day03:35Download AudioResumeNovember 03, 2021Nell GreenfieldboycefacebookEmailScientists investigate a humpback whale by boat and by drone in the surface waters near the west Antarctic Peninsula. (Duke University Marine Robotics and Remote Sensing Lab under NOAA permit 14809-03 and ACA permits 2015-011 and 2020-016)