While it is generally accepted that the forerunner to Homo sapiens - Homo erectus - left Africa about 1.5 million years ago to populate other parts of the world, there are two main theories about ...
More than 66,000 Americans will be diagnosed with pancreatic cancer this year. Learn more about the disease and how PanCAN can help.
It looks like you're using an old browser. To access all of the content on Yr, we recommend that you update your browser. It looks like JavaScript is disabled in your browser. To access all the ...