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Problems? Your computer may refuse to show anything other than an empty box. If so, and you are using Windows 7 as the webmaster does, fixing the problem is most simple. Print the image you will come to here & follow the few instructions. In other browsers I presume that you would follow the same approach i.e. get to the 'Java' program on your computer & fix the security level.

Of course you do need to install 'Java' to be able to see it. Easily done! It installs quickly & it is free. Just click on 'Free Java Download' here.

A fine image of a Spanish snake (Natrix natrix astreptophora). That image is the copyrighted work of Cor Zonneveld & has appeared on this page for many years with his express permission. But his fine original image seems no longer to be available, as this site must move in 2009.