I'm going to disagree with Tim B here.
I really am not a fan of "series", myself.
Sure, if you've got a bunch of questions you are struggling with in building a world, go ahead and ask them. That's not a problem, that's the entire purpose of the site.
However, it's usually a good idea to ask the questions one at a time, and incorporate what you've learned, or decided on, from one, into the next. Yes, it will probably take slightly longer than the shotgun approach; on the flip side, it will usually get you progressively better, more relevant answers.
But don't artificially tie them together. And yes, even if you're asking about the same world or universe, it can easily come across as artificial to other people.
If I come to the site looking for questions relating to, say, climate on large, arid continents, then I want that. If I'm an expert in climatology, then I want questions about that. In neither case am I likely to be particularly interested in the details of the life cycle of a type of fish in the ocean half way across the planet, even if it's the same planet, unless of course it somehow relates directly to the climate on that arid continent (which seems... unlikely).
If some other question is legitimately related, then link to it specifically; if you want to be helpful, at least provide a brief explanation of why the linked-to question is relevant. Please don't make readers go through a whole series, no matter how interesting you think the world described in them is, just to answer a question. Ultimately, you likely want to make it as easy as possible to answer your specific question, typically by putting all the information needed to answer the question into the question itself. Yes, this will likely lead to some duplication, but it also means that anyone interested in answering your question can start answering right then and there instead of having to read a dozen other questions while trying to pick out the important bits from each of those and keeping mental track of how they relate to the question they first came across.
Also, looking at the anatomically correct series in particular, that also has the problem that without "inside knowledge", the titles really don't say much about what OP is looking for. They usually discuss evolution of some kind of creature, but the person reading the question rarely gets to find out that that's the question being asked until the very end. I argued this back in February 2016!