July 10, 2017
Smithsonian Magazine's "Ask Smithsonian" series drew on the expertise of Senior Science Curriculum Developer, Dr. Katya Vines, when readers asked, "I was taught that there are three kinds of matter: solids, liquids and gases. But aren’t there others?" To read Dr. Vines' answer to this question and other questions like it from readers, go to: http://www.smithsonianmag.com/smithsonian-institution/do-animals-have-baby-teeth-more-questions-readers-180963688/#ffE5H6xr1T3SmoDY.99