Public Health Catastrophe Looms in Ukraine, Experts Warn Even before the war, the country struggled with epidemics of H.I.V., tuberculosis and hepatitis. The conflict threatens to undo decades of progress.
Trilobite Fossils Suggest Cannibalism Is Older Than Once Thought The “king” of the trilobites was snacking on whatever it could eat some 514 million years ago in the Cambrian era, even shelled creatures of its own species.
Life’s Preference for Symmetry Is Like ‘A New Law of Nature’ Techniques from computer science may help explain the tendency in biology for structures to repeat themselves.
Trying to Solve a Covid Mystery: Africa’s Low Death Rates The coronavirus was expected to devastate the continent, but higher-income and better-prepared countries appear to have fared far worse.
Brain Implant Allows Fully Paralyzed Patient to Communicate Letter by painstaking letter, a man in a completely locked-in state was able to formulate words and sentences using only his thoughts.