You can click on text written in blue to go to a page on that topic. For example, click on the word "Marella" to see more about this animal.
Click on time references in blue to go to a geologic time chart. Try clicking on "543 million years ago" to see the time chart.
To return to the page you came from, use the "back" button on the top right of the tool bar.
Remember, clicking on the image of the globe will take you to the home page of the exhibit.