Add Yahoo as a preferred source to see more of our stories on Google. Researchers analyzed 60,000-year-old arrowheads found in South Africa and discovered they had been tinged with poison. This is the ...

BISMARCK, N.D. (AP) - Documents show that American Indian artifacts found in North Dakota along the route of the Dakota Access oil pipeline last month weren't reported to state regulators for 10 days.

Researchers analyzed 60,000-year-old arrowheads found in South Africa and discovered they had been tinged with poison. This is the earliest known case of poison-enhanced hunting weapons in the human ...