Ice Age cave in Arctic leads to new discoveries

Deep inside a cave in Northern Norway, scientists have uncovered the bones of 46 animal species from the last ice age seventy five thousand years ago. The fossils show that during a brief but warmer period in the Ice Age many animals thrived but when the cold conditions returned they could not adapt to survive. This discovery is evidence of how animals responded to a dramatic climatic shift, and how global warming can challenge these populations now.