No wolf howls alone in the wilderness. Every being is a biome. Just so, every predator is its prey, every enemy its own enemy. This is the lesson of ecology. Every wolf is a deer, every deer is a deer tick, every deer tick is a human, every human is a blade of grass. Every American is a radical Islamic mujahid. Every human is carbon, oxygen, electricity, and hydrogen. Every rock is paper. Roy Scranton 
 Roy Scranton, from “Rock Scissors Paper” in We're Doomed. Now What?: Essays on War and Climate Change (2018); Rock Scissors Paper presented as talk at Los Angeles County Museum 2016.
Two images: A petroglyph boulder and a detail, Lake County, October 2018
Noting two symetrically designed bear?paw? images and figure seeming to approach? natural cleft in the rock.