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• S49.E1 ∙ Arctic Sinkholes
• S49.E2 ∙ Secrets in the Scat
• S49.E3 ∙ Great Mammoth Mystery
• S49.E4 ∙ Augmented
• S49.E5 ∙ Determined: Fighting Alzheimer's
• S49.E6 ∙ Dinosaur Apocalypse: The New Evidence
• S49.E7 ∙ Dinosaur Apocalypse: The Last Day
• S49.E8 ∙ Why Ships Crash
• S49.E9 ∙ Ice Age Footprints
• S49.E10 ∙ Ultimate Space Telescope
• S49.E11 ∙ Saving Venice
• S49.E12 ∙ Ending HIV in America
• S49.E13 ∙ Computers v. Crime
• S49.E14 ∙ Can Psychedelics Cure?
• S49.E15 ∙ Ocean Invaders
• S49.E16 ∙ Nazca Desert Mystery
• S49.E17 ∙ Crypto Decoded
• S49.E18 ∙ Zero to Infinity
• S49.E19 ∙ Rebuilding Notre Dame
• S49.E101 ∙ Predicting My MS