In the 2015 Pixar film Inside Out, a young girl’s mind is brought vividly and hilariously to life through a cast of animated archetypes, each representing a distinct facet of emotion or thought. The ...

Our bodies rely on their lymphatic system to drain excessive fluids and remove waste from tissues, feeding those back into the blood stream. It’s a complex yet efficient cleaning mechanism that works ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Using a speck of ...