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New NSF-Funded, University of Colorado Research shows 53-million-year-old Arctic Mammals Wintered in Darkness 6/1/2009 Ancestors of tapirs and ancient cousins of rhinos living above the Arctic Circle 53 million years ago endured six months of darkness each year in a far milder climate than today, according to a researcher at the University of Colorado at Boulder. More

New NSF-Funded, University of Colorado Research shows 53-million-year-old Arctic Mammals Wintered in Darkness

6/1/2009 Ancestors of tapirs and ancient cousins of rhinos living above the Arctic Circle 53 million years ago endured six months of darkness each year in a far milder climate than today, according to a researcher at the University of Colorado at Boulder. More