Not too long ago, PBS had a science program about what biologists have come to regard as 'Keystone' species, which without, entire biomes fall apart.
Grizzly bear, pooping out, what was once salmon, is the beginning of the entire soil enrichment spectrum upstream of, and surrounding the spawning grounds. Carried to high elevations, and everywhere in between.
They also make for world-record-holder Bonneville Salt Flats streamliner bodies .
