INTERNET SEARCH To better understand the past environment of Kenya’s Lake Turkana Basin, FossilFinder.org asks volunteers to scrutinize thousands of aerial photos taken at the site.
PIONEERING SCIENTIST The new book The Last Volcano chronicles the life of volcanologist Thomas Jaggar. Jaggar, second from left, is shown here measuring lava at Hawaii’s Kilauea volcano in 1917.
U.S. Geological Survey/Wikimedia Commons
MURKY RELATIONS Once thought of as cavemen, Neandertals may have built structures, researchers discovered 50 years ago. The finding led to speculation that Neandertals were direct ancestors of modern humans, a conclusion that is still hotly debated.