Wednesday’s magnitude 7.3 earthquake off Alaska’s Aleutian Islands chain struck in a region that has experienced a handful of powerful quakes within the last five years — including one that shook communities almost exactly two years...
An ancient leg bone uncovered in Africa might provide a step forward in understanding how dinosaurs and their close relatives evolved.
The 225-million-year-old fossil adds to growing evidence that an enigmatic group of reptiles known as the silesaurs played...
A new study based on Mars Desert Research Station commanders' reports reveals differences in female and male leadership behavior. Although both genders are task-focused,...
