Barriera corallina (Acquario di Genova, Italy)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/8791553@N03">Francesco Crippa</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/8791553@N03/2166665802/">dsc_1388</a>