Japanese macaques (<i>Macaca fuscata</i>) grooming each other at the Jigokudani Monkey Park, Japan
<a href="//commons.wikimedia.org/wiki/User:Frank_Schulenburg" title="User:Frank Schulenburg">Frank Schulenburg</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>, with free music soundtrack <i>Island Coconuts</i> by Aaron Kenny via YouTube Audio Library