The Indigenous peoples of the Bolivian highlands are survivors. For thousands of years they have lived at altitudes of more than two miles, where oxygen is about 35 percent lower than at sea level.

When Aristotle claimed that humans differ from other animals because they have the ability to be rational, he understood rational to mean that we could form our views and beliefs based on evidence, ...

I have noted that many of my fellow Christians have difficulty with the theory of evolution. This has been true since Charles Darwin published his "On the Origin of Species" in 1859. Most people have ...

Computer simulations suggest that evolution itself could be evolving, depending on environmental pressures. This would mean that not only do living things change over generational time but the ...