By the time they began to assemble the Corps of Discovery in the summer of 1803, Thomas Jefferson and Meriwether Lewis knew ...

For the wild fur market, we are firmly in the midst of a global economy and bad things happening halfway across the globe ...

Arctic Passages. By Kieran Mulvaney. Island Press; 240 pages; $30 and £24. Ends of the Earth. By Neil Shubin. Dutton; 288 ...