Megafauna including the impressive mastodon,  wooly mammoth, saber toothed cat, massive ground sloth and short faced bear suddenly and mysteriously disappeared from the face of the earth.  Scientists are still trying to discover what happened with five theories vying for the winning explanation to an ice aged enigma.  Tune in to see where we place our bets on Kill, Chill, Rill, or Grill when it comes to lights out for these magnificent beast!

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