button will always take you back up to the
current main topic within these pages. Your browser should provide a facility for
navigating BACK to the previous page.Our pages have been developed in an hierarchical branching structure for ease of navigation and the contents are summarised below. Each page covers one topic and uses a consistent style. The buttons at the bottom of every page enable you to navigate to any of the main topics.
The button will always take you back up to the
current main topic within these pages. Your browser should provide a facility for
navigating BACK to the previous page.
If you are wondering why many of our images appear in shades of grey, your display is probably set to only 16 colours. In order to appreciate fully the quality and content of our images we recommended that you view these pages with your display set to at least 256 colours.
New information is being gathered each day and our pages are updated frequently. For
the latest information visit the 
page.
University of Wales Swansea School of Biological Sciences Home Page
Authors: Peter Dyrynda, Rob Symberlist
Contact: P.Dyrynda@swansea.ac.uk
Update: 22/1/98