Ok guys, got another problem for you. This one is a bit weird.

While working on the foot i noticed that I had some edges that were transparent. i.e, everything else was shaded but theirs were wireframe. So I pulled them away and saw that they were attached to some more. I keep pulling until I pulled a complete copy of my elephant away.

So I deleted all the edges and verts that I could to try and get rid of it but I am left with this one last face. When I select it it also selects the main elephant and vice versa. I can't delete it. I can make it into one vert but it won't merge with one from the main elephant. I have tried to separate but that comes up with an error message.

This is doing my nut, any suggestions?