Yes. Here's a photo: [link] There's a lot of variety in colors and spots (and number of spots) and some have no spots (I just recently took a photo of one in my yard without spots which I might upload) and all the varieties have different names. Wiki says there are about 150 different species in the United States alone!
I didn't know either. I just learned all of this a couple of months ago.
I didn't know either. I just learned all of this a couple of months ago.