While many of the sites were closed down, archeological evidence suggests that those who remained centralized their labor forces and brought it more advanced technology—changes for which Ben-Yosef and Sapir-Hen suggested that the Egyptian empire may have responsible.
as had been originally suggested."The introduction of the camel to our region was a very important economic and social development," Dr.
While Ben-Yosef and Sapir-Hen located camel bones that predated the 10th century, they believe that those belonged to wild animals from the Neolithic period or earlier.
The archeologists said that the introduction of domesticated animals into the area ushered in dramatic changes to the local copper mining operation.
There are a couple of different radioactive forms of uranium that decay into lead.
There is a radioactive form of thorium that also decays into lead.