Explore & Learn > Archive > June 2009

Explore & Learn

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