And the team says changes in time spent in light or dark environments influences eating habits.

VOA: special.2010.12.21

Each one was painted red or dark green.

VOA: special.2010.04.26

The woman of action was ordered to remain quiet for months in a dark room, or become blind.

VOA: special.2009.07.26

The researchers say Anchiornis huxleyi appeared to have a dark gray or black body.

VOA: special.2010.03.16

The challenge is to pick out oil from other dark spots, such as shadows made by clouds or patches of seaweed.

VOA: standard.2010.07.05

You are reading these things and this kind of dark mood sets over you and again, whether you are for or against the death penalty, that is not my point it is that sifting through enough of that sort of puts that mood on you,".

VOA: standard.2009.10.21