Ant hill in a neighborhood of Itajubá-MG, Brazil.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/25344230@N04">Mateus S. Figueiredo</a>
CC BY-SA 2.0
<span class="int-own-work" lang="en">Own work</span> (Flickr: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/25344230@N04/14295399535/">Proformigueiro</a>)