As with most wildlife, you eat, you rest.  Unless it is mating season...
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/22170893@N06">Gregory "Slobirdr" Smith</a>
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/slobirdr/28486498527/">Espanola Marine Iguana (Amblyrhynchus cristatus venustissimus)</a>