Scientists determine the time of extinction of ancient porcupines
(PHYSorg.com Archaeology & Fossils)

A team of specialists that included scientists from Siberia, the Urals, and the University of Arizona conducted radiocarbon dating of the teeth and bones of ancient porcupines found in the caves of Gorny Altai and the Urals. They established that these thermophilic animals lived in these territories 30,000 to 40,000 years ago and died out with the onset of the Last Glacial Maximum.