Zoology 1.

This page features images of marine invertebrates.

Sand dollar, a disc with 5 way radial symmetry. Brittle star fish. A small disc with 5 way radial symmetry and 5 thin segmented legs extending from the disk.

Includes skip navigation link.

Listen to the full page, you will hear all the links above and to the left before you reach the Zoology 1 heading.
Listen to the content of the page page when the skip navigation link is activated.

There is a skip navigation link at the very beginning of the page, but you cannot see it because a cascading style sheet has been used to hide it. The code for the link is:

<a name="top" class="invisible" href="#main">Skip Navigation Link </a>

There is a bookmark just before the heading Zoology 1. The code for it is:

<h1><a name="main"></a>Zoology 1.</h1>

The cascading style sheet includes a class called .invisible which prevents the display of an element:

.invisible {display: none}

When the Skip Navigation Link is activated it, the focus of the page jumps to the bookmark named main. This allows screen reading technology to bypass all the navigation links on the page.

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