Iterate over .each() of a type, clone (this) then append() to another iterated set

HTML

<div class="thumbnails">
    <li><a></a></li>
    <li><a></a></li>
    <li><a></a></li>
    <li><a></a></li>
    <li><a></a></li>
</div>
... more HTML code
<div class="article">
    <li class="headline" ><a>1 headline</a></li>
</div>
<div class="article">
    <li class="headline"><a>2 headline</a></li>
</div>
<div class="article">
    <li class="headline"><a>3 headline</a></li>
</div>
<div class="article">
    <li class="headline"><a>4 headline</a></li>
</div>
<div class="article">
    <li class="headline"><a>5 headline</a></li>
</div>

JavaScript

$('.article .headline a').each(function(i) {
    $(this).clone().appendTo($('.thumbnails li').eq(i));
});