Dr Derek Keats explores the science of bird colouration in Hoedspruit, revealing the surprising secrets behind nature's stunning displays.

The key genes change the chemical structure of the pigment molecule through the actions of an enzyme which adds just one atom ...

However, these animals can’t make carotenoids directly ... mutations to just a few genes can alter the chemical structure of the pigments profoundly – enough to make the difference between ...

Before and after the study, the researchers used an instrument called a VeggieMeter to detect carotenoids in the participants’ skin. This is because carotenoid pigment can only be derived by ...

For example, leaves that contain carotenoids (like those birches on Alumni Walk ... At the time, the Board of Trustees voted to keep the space in front of their future Chapel open and free from any ...

There is a structure called the retina in the back of our eyes that acts like film ... This can tell you if there are any issues with your central field of vision. Carotenoids such as lutein and ...