Woolly Mammoth Tooth 
(Interior Cross Section of Fossil Tooth)
Age: 20,000 - 40,000 Years Old
Pleistocene Epoch
Species: Mammuthus Primigenus
Discovered: Siberia
Measures: 3.5' Long
 
- The Woolly Mammoth
The woolly mammoth is an extinct species of mammoth that lived during the Pleistocene until its extinction in the Holocene epoch. It was one of the last in a line of mammoth species, beginning with Mammuthus subplanifrons in the early Pliocene. The woolly mammoth began to diverge from the steppe mammoth about 800,000 years ago in East Asia. Its closest extant relative is the Asian elephant. DNA studies show that the Columbian mammoth was a hybrid between woolly mammoths and another lineage descended from steppe mammoths.