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
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