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Home > HowStuffWorks NOW > Stealing Sand, Communicating via Poop, and Clinical Trial Participation
Podcast: HowStuffWorks NOW
Episode:

Stealing Sand, Communicating via Poop, and Clinical Trial Participation
Category: Society & Culture
Duration: 00:18:47
Publish Date: 2017-03-13 02:00:00
Description:

and is in such high demand that tons of it are being stolen from beaches. White rhinos use middens as a complex communal message board. Plus, clinical trials need more volunteers -- we explain why.

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