Explore what scientists know about yawning, why the oxygen explanation falls short, and how research investigates the urge to copy another person’s yawn.
Learn how nerves and blood vessels help produce water-induced fingertip wrinkles, and why their possible benefit for wet grip is still debated.
Explore how migratory birds combine inherited directions, learned routes, the Sun, stars, magnetic cues, and landmarks to navigate.
Discover how fluid-filled canals in the inner ear detect rotation, why the sensation can continue after you stop, and how balance connects to vision.
Discover how the brain predicts self-generated touch, why timing changes ticklishness, and what researchers still do not know about tickling.
Explore why a new situation can feel strangely familiar, how researchers study déjà vu, and why a feeling of prediction is not proof of foresight.
Explore why cats purr during comfort, feeding, and other situations, and discover what research reveals about how they produce the sound.
Follow the journey from a scouting ant to a busy food trail, and learn how pheromones, memory, and recruitment help colonies forage.
Discover how camels conserve water, manage heat, walk on sand, and use the fat in their humps to survive difficult desert conditions.
Learn why deciduous trees shed leaves, how they recover nutrients, what creates autumn colors, and why evergreens follow a different strategy.