The discovery of a woolly mammoth's body in Siberia this week has amazed Russian scientists because of how well preserved the animal's blood and muscle tissue is.
The mammoth, which is estimated to have lived 10,000 to 15,000 years ago, was discovered on the Lyakhovsky Islands in northeastern Russia by an expedition team from North-Eastern Federal University.
The scientists believe the blood and tissue of the animal was preserved due to the permafrost, permanently frozen soil.
Pictures and full story: http://www.cbsnews.com/8301-205_162-57586854/woolly-mammoth-containing-liquid-blood-discovered-in-russia/