Popular Science Letters Thank you! | Published Sep 16, 2003 8:37 PM Science SHARE Thank you for contacting Popular Science.Click here to go to the PopSci.com home page. Science MORE TO READ RELATED Biochemist Marie Maynard Daly uncovered what makes us tick The first Black woman to earn a Ph.D. in chemistry, Daly made contributions to our understanding of the heart and DNA that are now common knowledge. READ NOW RELATED Pollution kills 1 in 6 people worldwide It is time to treat carcinogens, dirty water, and other sources of pollution like a health crisis. RELATED Bottlenose dolphins glow-up with coral body scrubs To keep skin healthy, dolphins will even wait in line for these coral and sea sponge spas.