PBS Eons has a new episode and what happened to a bunch of whales.  The Andes Mountains might have some explaining to do…

At a site known as Cerro Ballena or Whale Hill, there are more than 40 skeletons of marine mammals — a graveyard of ocean life dating back 6.5 million to 9 million years ago, in the Late Miocene Epoch. But the identity of the killer that they finally settled on might surprise you.