Jack London became so enamored with a dog he met while prospecting for gold in the Yukon Territory that he used their bond to create one of the 20th century's most iconic works of literature.

American literary giant Jack London was renowned for his rugged individualism and adventurous spirit, but he also held controversial views that ultimately tarnished his legacy.

A surprising new discovery of ancient human remains in Africa — with remarkably well-preserved DNA — is redrawing the map of human populations in new and exciting ways.

With more than half a million dead in just four years, the Civil War was America's bloodiest conflict and the first-ever to be extensively documented through photography.