Mud flowing from the vent of a <a href="https://en.wikipedia.org/wiki/Mud_volcano" class="extiw" title="w:Mud volcano"> mud volcano</a> at <a href="https://en.wikipedia.org/wiki/Piparo" class="extiw" title="w:Piparo">Piparo</a>, Trinidad and Tobago.
<a href="//commons.wikimedia.org/wiki/User:Rygel,_M.C." title="User:Rygel, M.C.">Michael C. Rygel</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>