Stick out your tongue! That's one of the first things you hear when you visit a doctor. The tongue has been used as an indicator of health or disease for thousands of years: from ancient Egypt and Chinese traditional medicine to today's modern medical practice... click to read more

The genetic material of any two humans is 99.9% identical, but the small differences that do exist between our genomes provide a record of the complex evolutionary history we have undergone as a species. Over the past decade, scientists have sequenced a large number of... click to read more

How did galaxies, like our own Milky Way, arise from the featureless universe after the Big Bang? Through a lot of astronomical detective work, we now know that galaxies expand through consuming smaller systems, tearing them apart through their gravitational forces and assimilating their stars.... click to read more

There is nothing subtle about the immune system. T cells, potent immune cells found in the blood, can kill just about anything. In response to a viral infection, T cells move in, kill any of your cells that have a virus inside them, coordinate a... click to read more

The Middle Triassic period, between 247 and 237 million years ago, was the age just before the rise of the dinosaurs and a time of great evolutionary innovation. The largest mass extinction event of all time, known as 'The Great Dying', destroyed almost all species... click to read more