Crystal Healing

I am trying to put together a logo to use for a free spiritual study group I'm working to put together. I need to find an ancient--or at least as old as possible according to historical accounts--symbol (abstract or whatever) that I could modify and use. Something that was/is used to symbolize any one of the following things:

1) The non-human kingdom
2) Human connection (spiritual one-ness or general bond) with animals
3) Spiritual/evolutionary nature of animals
4) Animals' wisdom/nature as teachers & healers
5) somrthing relating to this that I haven't thought of/mentioned

Or maybe any logo artists reading this who'd kindly be willing to donate a graphic??

Any leads or ideas (or offers to help) are very much appreciated!!