This page is for our clients.
It enables us to quickly navigate a client to a website that we are recommending.
It's easier, for example, for us to say and for a client to remember, "Go to our website and click on the zebra" than to give longer descriptions.
To avoid confusion, the images have nothing to do with pets, cats, vets, or veterinary medicine (they appear nowhere else on this site) and are all distinct. They also have nothing to do with where they link. They are just images that are unique and that most people will be able to remember and recognize.
By the way, if we are using this to link to your site and you don't like your assigned image, please let us know. We will happily change it.