Watch Colour: The Spectrum of Science Season 1 Episode 2 Online
- COUNTRIES: United Kingdom
- Subtitles: English
The raw, early Earth had plenty of colour, but that was nothing compared with what was going to come next. That canvas was about to be painted with a vast new palette - and the source of those colours was life. Green is the colour of the natural world and yet it's the one colour that plants have evolved not to use.