Spread over 2300 km, the Great Barrier Reef is a phenomenon. More than 400 coral species, 1500 species of fish, 5000 species of mollusc, 125 species of sharks and stingrays, 17 species of sea snake, 6 species of sea turtles, 15 varieties of seagrass, and many more live in peace helping each other.
Does that make you wonder at the state of human affairs?