![artistic rendering of Eocene Epoch landscape](images/media/library_008_lg.jpg)
During the Eocene Epoch, alligator relatives swam in the swamps on Ellesmere Island and mammals climbed in the dawn redwood trees. Illustration by Bob Hynes © Smithsonian Institution
During the Eocene Epoch, alligator relatives swam in the swamps on Ellesmere Island and mammals climbed in the dawn redwood trees. Illustration by Bob Hynes © Smithsonian Institution