“An extra hour on the course could be the difference between life and death. “ [shareprints gallery_id=”29890″ gallery_type=”thumb_slider” gallery_position=”pos_center” gallery_width=”width_100″ image_size=”large” image_padding=”2″ theme=”dark” image_hover=”false” lightbox_type=”slide” captions=”true” ...

Researchers have uncovered the remains of a vast ancient river system that crossed what is now known as the Sahara Desert. The river system was so ...