user1578: I asked a question about the terminology in animal models of disease, and had lots of trouble finding tags. There were computational-models and mathematical-models, but no disease-models or animal-models or translational-models or preclinical-models or animal-lines or cell-lines. I think that the site can use at least one of my "models" suggestion, and I would leave it to the community here to decide which one is best. 
Second, I used the tag research mostly out of desperation, but I don't think it is a very good tag. It is a word which can be understood very differently in different contexts, and in my experience, this makes it a bad tag. I used it because preclinical models are a tool in biology research. But the only other question which uses it is about the daily academic life of a biology scientist, which is a different use. I also anticipate that it will someday be used in non-constructive ways: somebody can construe it as to be used when a question asks "is there research on the topic I want to ask about", which is probably true of most questions on the site. Another problem would if a user thinks "I am doing research (= seeking more information) on X, so I will tag my question with X and research" - this certainly covers 100% of the question on the site and completely defeats the purpose of the tag. 
My suggestion would be to rename, and maybe split, the research tag into something like research-tools and research-process, or any more suitable expressions. 

user107: I think animal-models is a good tag, and I have added that to your question. I agree that research is too vague. I followed your suggestion and split it. Feel free to add wiki summaries for all three.

1578: <p>I asked a <a href="https://biology.stackexchange.com/questions/17580/is-there-a-superterm-combining-animal-line-and-cell-line-in-disease-models">question</a> about the terminology in animal models of disease, and had lots of trouble finding tags. There were <a href="https://biology.stackexchange.com/questions/tagged/computational-models" class="post-tag" title="show questions tagged &#39;computational-models&#39;" rel="tag">computational-models</a> and <a href="https://biology.stackexchange.com/questions/tagged/mathematical-models" class="post-tag" title="show questions tagged &#39;mathematical-models&#39;" rel="tag">mathematical-models</a>, but no <a href="https://biology.stackexchange.com/questions/tagged/disease-models" class="post-tag" title="show questions tagged &#39;disease-models&#39;" rel="tag">disease-models</a> or <a href="https://biology.stackexchange.com/questions/tagged/animal-models" class="post-tag" title="show questions tagged &#39;animal-models&#39;" rel="tag">animal-models</a> or <a href="https://biology.stackexchange.com/questions/tagged/translational-models" class="post-tag" title="show questions tagged &#39;translational-models&#39;" rel="tag">translational-models</a> or <a href="https://biology.stackexchange.com/questions/tagged/preclinical-models" class="post-tag" title="show questions tagged &#39;preclinical-models&#39;" rel="tag">preclinical-models</a> or <a href="https://biology.stackexchange.com/questions/tagged/animal-lines" class="post-tag" title="show questions tagged &#39;animal-lines&#39;" rel="tag">animal-lines</a> or <a href="https://biology.stackexchange.com/questions/tagged/cell-lines" class="post-tag" title="show questions tagged &#39;cell-lines&#39;" rel="tag">cell-lines</a>. I think that the site can use at least one of my "models" suggestion, and I would leave it to the community here to decide which one is best. </p>

<p>Second, I used the tag <a href="https://biology.stackexchange.com/questions/tagged/research" class="post-tag" title="show questions tagged &#39;research&#39;" rel="tag">research</a> mostly out of desperation, but I don't think it is a very good tag. It is a word which can be understood very differently in different contexts, and in my experience, this makes it a bad tag. I used it because preclinical models are a tool in biology research. But <a href="https://biology.stackexchange.com/questions/17571/how-does-a-biologist-decide-when-she-has-enough-results-to-publish-a-paper">the only other question which uses it</a> is about the daily academic life of a biology scientist, which is a different use. I also anticipate that it will someday be used in non-constructive ways: somebody can construe it as to be used when a question asks "is there research on the topic I want to ask about", which is probably true of most questions on the site. Another problem would if a user thinks "I am doing research (= seeking more information) on X, so I will tag my question with X and research" - this certainly covers 100% of the question on the site and completely defeats the purpose of the tag. </p>

<p>My suggestion would be to rename, and maybe split, the research tag into something like <a href="https://biology.stackexchange.com/questions/tagged/research-tools" class="post-tag" title="show questions tagged &#39;research-tools&#39;" rel="tag">research-tools</a> and <a href="https://biology.stackexchange.com/questions/tagged/research-process" class="post-tag" title="show questions tagged &#39;research-process&#39;" rel="tag">research-process</a>, or any more suitable expressions. </p>
 107: <p>I think <a href="https://biology.stackexchange.com/questions/tagged/animal-models" class="post-tag" title="show questions tagged &#39;animal-models&#39;" rel="tag">animal-models</a> is a good tag, and I have added that to your question. I agree that <a href="https://biology.stackexchange.com/questions/tagged/research" class="post-tag" title="show questions tagged &#39;research&#39;" rel="tag">research</a> is too vague. I followed your suggestion and split it. Feel free to add wiki summaries for all three.</p>
