Secrets of the Dead.

Secrets of the Dead

Graveyard of the Giant Beasts

Scientists try to determine which animal was the apex predator 58 million years ago -- a 43-foot-long snake called the titanoboa or a giant crocodilian. (60 minutes)

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UPCOMING EPISODES

Thu, 3/14 at 1:00 pm on Austin PBS WORLD

Lady Sapiens

Scientific investigations from around the world help piece together the untold story of prehistoric women. (60 minutes)