The Cajun Navy was formed after Hurricane Katrina and really got its legs after the Louisiana flood of 2016. They save a lot of lives, but some fear the pitfalls of "vigilante heroism." Learn all about this group of do-gooders today.

Short Stuff: Why do kangaroos hop?
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Boeing's Nosedive: The 737-MAX
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Selects: Thrill to the Stunning Bicameral Mind Hypothesis
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