Every square centimetre of your skin is teeming with life. While this might sound unsettling, these microscopic inhabitants – ...

Botulinum is a toxic compound that affects nerves. It is produced by a bacterium called Clostridium botulinum. This common bacterium is found in soil, water and air. The bacteria are ...

Is it all in the hips? Scientists break down woodpeckers' head-hammering moves. Plus, what makes one ant a queen and another ...