It was clearly the work of a serial killer. When dead great white sharks started washing up, missing their livers, scientists were stumped. The culprit? A creature that really lives up to its name: the killer whale. See the video and more info here: http://bit.ly/sharkswhale Questions, comments or future episode ideas: podcast@roaring.earth Learn more about your ad choices. Visit megaphone.fm/adchoices

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