Radiologists have long had the capability to scan entire bodies. But identifying all the body's many internal structures is much harder. Now an AI system can do it instead. ...read more
From positive pregnancy tests to vivid dreams of giving birth, experts weigh in on what your subconscious is trying to tell you through your dreams. ...read more
Humans and some other mammals keep cool by sweating it out. But the rest of the animal kingdom, lacking sweat glands, has evolved other ways to survive the summer. ...read more
Citizen scientists report observations of species like monarch butterflies. Their efforts made a real impact on getting the special animals listed as globally endangered this year. ...read more