Monique Reed wrote in message ...
Have a look at:
http://photoscience.la.asu.edu/photo...hotointro.html

Carotenoids can function as acessory pigments to scavenge energy not
immediately useful by chlorophylls. A shade plant with a lot of
carotenoids (or other pigments) may be trying to use what light it
receives as efficiently as possible.

You mean carrots really can see in the dark?

Mike.