title: Is "find_all" and "select" the same thing?
body: <p>These two statements give me the same results:</p>
  
  <pre><code>[1,2,3,4].find_all { |x| x.even? }
  
  [1,2,3,4].select{ |x| x.even? }
  </code></pre>
  
  <p>Is <code>find_all</code> just an alias? Is there a reason to use one over another?</p>