Topic: dreaming

Woman sleeping peaceful on cloud (Getty Images/urbazon)

How marijuana affects your dreams

Elizabeth Hlavinka
Sleepy Pigeon (Photo illustration by Salon/Getty Images)

Study suggests pigeons dream of flying

Matthew Rozsa
(<ahref ‘http://www.shutterstock.com/gallery-91858p1.html’>Yuganov Konstantin </a> via <a href='http://www.shutterstock.com/'>Shutterstock</a>)

SHAUNACY FERRO - Popular Science