// my question was never answered, so i'm asking it again! //
- also, i really dunno where to ask this, but i guess art category would -

question:
how would the anatomy of an anthropomorphic animal work out, when it comes to drawing or animating them? could this be explained?
side question:
how would the anatomy of an anthropomorphic spider work-?

As someone who wishes to become an artist and practice anatomy, I think I could help you out. First, you need a basic understanding of a normal human's anatomy, you can draw it in a stylized way if desired, but it is important to have the basics down. Some books can be really helpful when it comes to this, one that personally really helped is "Freehand figure Drawing for Illustrators" by David H. Ross.

Once you've mastered that, you can add any special features or designs you wish to include. For a spider, you might want to look at others take on that. Of course I'm not saying you should steal a person's design, but it could give you some much needed inspiration.

I hope this helped!

depending on you form of drawing (digital or paper) it would help to use the anatomy of an animal as a reference to draw a anthropomorphic animal before transferring with a scanner or tracing over them on a sketch pad them to digital. All anthropomorphic animal are different and unique. But in short; yes it will work out by giving you a draft start.