European Cave Bear
Credit: Copyright N. Frotzler, University of Vienna

European cave bears were the first of the mega-mammals to die out in the most recent historical round of big-time extinctions, going extinct around 13 millennia earlier than was previously thought, according to a new estimate. The new extinction date, 27,800 years ago, coincides with a period of significant climate change, known as the Last Glacial Maximum, when a marked cooling in temperature resulted in a reduction or total loss of the vegetation that the cave bears ate.