Stories by Tim Appenzeller

A landmass was wandering over three billion years ago

Drumlins may tell the tale of an ice-age flood

The upper crust of continents can slip and deform on its own

A model mantle re-creates motifs of plate tectonics

Drugs and "watchful waiting" may suffice after heart attacks

DNA of the dusky sparrow tells a cautionary tale

Workers take a picture of a brain in action.

Does the earth's core react with the mantle?

Investigators trace the fate of self-reactive immune cells

A crab eye does it with mirrors-and lenses too

Convection may shape properties of the inner core

Have astronomers glimpsed the bright birth of galaxies?

A monkey enzyme may show natural selection's handiwork

An inquiry into the roots of human amnesia has shown how deep structures in the brain may interact with perceptual pathways in outer brain layers to transform sensory stimuli into memories