Workwise, Josh Scott is an ultra-marathoner. On a sunny, brisk spring morning, the arborist and owner of Beetlebung Tree Care walks around a spectacular 70-acre property on Squibnocket Pond with caretaker Tim Rich. Visually, they are quite a pair. Tim is tall, maybe six-six with a long, lumbering stride while Josh has the wiry build and nimble movements of a runner.