Mammoths were a diverse genus that roamed across Eurasia and North America during the Pleistocene era. In continental North America, at least two highly divergent species have long been recognized – woolly ...

Biology - Plants & Animals

May 30, 2011 4.3 / 5 (6) 9 |

Paleoindian groups* occupied North America throughout the Younger Dryas interval, which saw a rapid return to glacial conditions approximately 11,000 years ago. Until now, it has been assumed that cooling temperatures and ...

Other Sciences - Archaeology & Fossils

Apr 12, 2010 4.6 / 5 (5) 1 |