Upside-down rhinos chewing gum on pavement win 2021 IG Nobel prizes

The World

The IG Nobel prizes honor silly science experiments that "make you laugh and then make you think." The winner in the Transportation Research category does exactly that by exploring the merits of hanging rhinoceroses upside down. The World's Sarah Birnbaum explains that the experiment isn't just strange, it's also essential for conservation.

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