Thomas Jefferson, c.1821

Thomas Jefferson’s Contributions to Natural History

His effort sent out the Lewis and Clark exploring party into the unknown West.

view counter
view counter

Recent Stories

By the 1920s, California had lost all of its grizzly bears—once considered a distinct species and an emblem of the state.

Preconceptions skew our view of the biggest killer in the developed world, atherosclerosis.

Across the Pacific Ocean, plastics, plastics, everywhere