Muddy colours aren’t a sign of weakness – they show you’ve been taught to ignore the one skill that matters most.

The human eye can physically perceive millions of colours. But we don’t all recognise these colours in the same way. Some people can’t see differences in colours – so called colour blindness – due to ...

Although the chemistry of autumn colours is well understood, there is an ongoing and lively debate among scientists about why trees evolved their vivid autumn colours in the first place. Driving north ...