News and views from the foothills of the Rocky Mountains in Alberta, Canada
https://www.livescience.com/cretaceous-extinction-darkness?utm_source=SmartBrief&utm_medium=email&utm_campaign=368B3745-DDE0-4A69-A2E8-62503D85375D&utm_content=C72CBCDC-58EC-4007-978A-EBB2D20C29C4&utm_term=f8080b64-e063-4cd9-9668-d7392b31eaee
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