title: Mongoose Results' Default Order
body: <p>When executing a <code>find()</code> query without any <em><code>sort()</code></em> function, are the returned results in any kind of order? Does this order change between find queries?  </p>
  
  <p>I'm trying to understand this default behavior and if it made sense, use it to implement pagination functionality on my API's results.  </p>