Relative dating archeology
The carbon-14 it contained at the time of death decays over a long period of time.
By measuring the amount of carbon-14 left in dead organic material the approximate time since it died can be worked out.
At a particular site, there may be present several components, recognized by critical changes in the artifact assemblages.
A number of similar and contemporary components make up a phase..
For small to medium-sized animals, larger also means faster, but for really large animals, when it comes ...
History, anthropology, and archaeology are three distinct but closely related bodies of knowledge that tell man of his present by virtue of his past.
For example, in 1991, two hikers discovered a mummified man, preserved for centuries in the ice on an alpine mountain.