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.

Our vision is amazing. We can judge distances, recognise objects, navigate rugged terrain, catch a frisbee, and so much more based on slight differences in the light that enters our eyes. Decoding all ...

A few years ago I climbed over a gate and found myself gazing down at a valley. After I’d been walking for a few minutes, looking at the fields and the sky, there was a shift in my perception.

Tom has a master’s degree in biochemistry from the University of Oxford and his interests range from immunology and microscopy to the philosophy of science.View full profile Tom has a master’s degree ...