During his travels in America in 1841-1842 and 1845-1846, Charles Lyell was impressed by the difference of the living flora and fauna of North America from those of Europe. The fossil shells of the ...

Concord is widely known for another aspect of its history: It is intimately associated with the Transcendentalist movement in the quarter century before the Civil War. That distinction, too, it owes ...

"Plan of development in the geological history of North America ... by James D. Dana": p. [31]-45 Address delivered on retiring from the duties of president of the American association for the ...

In a rocky impact crater high in Canada's Arctic, scientists have uncovered a hornless rhinoceros that is rewriting the map of ancient Earth. The newly described species, Epiatheracerium itjilik, ...

Beneath the quiet plains and bustling cities of the U.S. and Canada, an ancient process is slowly playing out. According to a new study published in Nature Geoscience, pieces of North America's oldest ...