Disappearing Starfish Mystery

Passport Season 8 Episode 804 | 26m 46s

Go behind the scenes with biologists investigating a mysterious disease killing millions of West Coast starfish; discover the surprising health benefits from eating dark chocolate; and find out how a high-tech rover is searching for ancient life on Mars. Also, meet a man on a mission to uncover the amazing secrets of the spider web.

Aired: 11/19/14

Rating: NR

Video has closed captioning.

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Funding for QUEST is provided by the National Science Foundation.