Jacquelyn Gill stood entranced inside a permafrost cave in Siberia. Woolly mammoth tusks protruded through glistening walls. A lion cub, dead for 30,000 or more years, appeared as if it was napping. “In those 30 minutes (inside the cave), I had the opportunity to get closer to the landscape I’ve devoted my career to understanding read more Science Channel showcases Gill’s pursuit of ‘Lost Beasts of the Ice Age’