Image Sequence, Zip CT (Accessibility)

This content type allows for the easy creation of a self-contained series of images that can be stepped-through by the user, or played as a slideshow. This is useful for presenting a set of photos, for building up a complex figure one layer at a time (example below), for presenting steps in a process or cycle, etc.

Settling the Americas  The last ice age created a land bridge across the Bering Sea, allowing humans to migrate from Eurasia into North America. The first humans probably entered fifteen thousand years ago, and their descendants continued expanding southward. By seven thousand years ago, humans lived in the entire continent, except for some regions in the dense Amazonian forest.