Air Date: March 3rd, 1974
Documentaries focus on science, the natural world, history and research.
Next Episode - Season 44, Ep. 16 : Killer VolcanoesOct 25, 2017
The hunt for a volcanic mega-eruption that plunged medieval Earth into a deep freeze includes geologic evidence from Greenland to Antarctica.
Season 44 - Episode 21 : Day the Dinosaurs Died Dec 27, 2017
Scientists discover new clues as to the catastrophe that ended the reign of the dinosaurs on Earth.
Season 44 - Episode 20 : Bird Brain Dec 20, 2017
Scientists test avian aptitude with brainteasers that reveal acute intelligence.
Season 44 - Episode 19 : Extreme Animal Weapons Nov 22, 2017
Why some animals have extreme armaments, including claws, horns, fangs and stings.
Season 44 - Episode 18 : Killer Floods Nov 8, 2017
Efforts to uncover the geologic footprints of colossal megafloods in Iceland and on the seabed of the English Channel.
Season 44 - Episode 17 : Killer Hurricanes Nov 1, 2017
Researching the Great Hurricane of 1780, which blasted its way across the Caribbean, why it was so dangerous and the potential for more mega-storms in the future.