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A mass of fossilized fish, uncovered in North Dakota, appear to preserve the catastrophic fallout of the asteroid impact that wiped out the dinosaurs.
Read more: https://to.pbs.org/2IIrXKM
PRODUCTION CREDITS
Digital Producer: Emily Zendt
MEDIA CREDITS
Additional Footage: University of Kansas / Robert DePalma
Music: APM
© WGBH Educational Foundation 2019
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