What are they looking at, and what are they thinking?

It turns out they are watching a big barney between members of their troop. 

 This image of apparent serenity versus commotion is the overall winner of the 2018 Wildlife Photographer of the Year competition, announced at a gala dinner at London's Natural History Museum.
 The picture was taken by Marsel van Oosten in China's Qinling Mountains.
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