user16866: At some point someone made an animal tag (now with 18 questions), which is silly given that we already have a zoology tag (1048 questions). 
I started a vote to make animal a synonym of zoology, but it has garnered exactly 0 attention or 1 votes. 
Let's just clean this up now...Please vote to make these two tags synonymous here: 
https://biology.stackexchange.com/tags/zoology/synonyms 

user9943: Your activity relating this issue has escaped my notice - my apologies. I merged animal with zoology. The effects may take a while to become visible because of caching.

16866: <p>At some point someone made an <a href="https://biology.stackexchange.com/questions/tagged/animal" class="post-tag" title="show questions tagged &#39;animal&#39;" rel="tag">animal</a> tag (now with 18 questions), which is silly given that we already have a <a href="https://biology.stackexchange.com/questions/tagged/zoology" class="post-tag" title="show questions tagged &#39;zoology&#39;" rel="tag">zoology</a> tag (1048 questions). </p>

<p>I started a vote to make <a href="https://biology.stackexchange.com/questions/tagged/animal" class="post-tag" title="show questions tagged &#39;animal&#39;" rel="tag">animal</a> a synonym of <a href="https://biology.stackexchange.com/questions/tagged/zoology" class="post-tag" title="show questions tagged &#39;zoology&#39;" rel="tag">zoology</a>, but it has garnered exactly <strike>0 attention or</strike> 1 vote<strike>s</strike>. </p>

<p><strike>Let's just clean this up now...Please vote to make these two tags synonymous here: </strike></p>

<p><strike><a href="https://biology.stackexchange.com/tags/zoology/synonyms">https://biology.stackexchange.com/tags/zoology/synonyms</a> </strike></p>
 9943: <p>Your activity relating this issue has escaped my notice - my apologies. I merged <a href="https://biology.stackexchange.com/questions/tagged/animal" class="post-tag" title="show questions tagged &#39;animal&#39;" rel="tag">animal</a> with <a href="https://biology.stackexchange.com/questions/tagged/zoology" class="post-tag" title="show questions tagged &#39;zoology&#39;" rel="tag">zoology</a>. The effects may take a while to become visible because of caching.</p>
