New crust is continually being pushed away from divergent boundaries (where sea-floor spreading occurs), increasing Earth's surface. But the Earth isn't getting any bigger. What happens, then, to keep ...

Species adapt and evolve in strikingly similar or distinct ways. Uncover the different pathways between convergent and divergent evolution. The theory of evolution, worked out in the nineteenth ...

Build mountains. Trigger volcanoes. Create new sea floor. You now have the power to change the landscape with the slightest push of your mouse. Four types of plate tectonic activity are demonstrated ...