The human body has always been crowded with microscopic passengers, from bacteria to viruses and fungi. Over the past two ...
Exclusive: Some scientists say many detections are most likely error, with one high-profile study called a ‘joke’ ...
The human body is a machine whose many parts – from the microscopic details of our cells to our limbs, eyes, liver and brain – have been assembled in fits and starts over the four billion years of our ...