Elephant
The elephant commands space with undeniable authority. Standing up to 4 metres at the shoulder, occupying roughly 45 cubic metres of volume, and casting shadows visible from considerable distance, the elephant's physical presence cannot be ignored. Its footsteps register on seismographs up to 32 kilometres distant. The trunk alone contains over 40,000 muscles, enabling manipulation of objects from single blades of grass to 270-kilogram logs. This is presence one can photograph, touch, and hear approaching through the bush.
Time
Time's physical presence approaches perfect zero by conventional measurement. It occupies no volume, reflects no light, and produces no sound. Yet paradoxically, time constitutes the fundamental framework within which all physical presence occurs. Without time, the elephant would lack duration and thus existence. Time's presence manifests only through its effects: ageing, decay, growth, and motion. It is the canvas upon which physicality is painted, invisible yet absolutely foundational. One cannot photograph time, yet every photograph proves its existence.