We believe the ice sheet was not around all the time. It was only around during cool snaps of the climate.

R. R. Bibliography
Miller K.

Miller is noted as a co-author of a major introductory college and high school biology textbook publiKenneth R. Millerd by Prentice Hall since 1990. Kenneth Raymond Miller (born July 14 1948) is an American cell biologist and molecular biologist who is currently Professor of Biology and Royce Family Professor for Teaching Excellence at Brown University. He has written two books on the subject: Finding Darwin's God which argues that a belief in evolution is compatible with a belief in God; and Only a Theory which explores ID and the Kitzmiller v.