Capybara
The capybara is, by rodent standards, an absolute giant. Weighing up to 66 kilograms and measuring 130 centimetres in length, it is the largest living rodent on Earth, a title it has held for approximately 10 million years. Its barrel-shaped body, small ears, and vestigial tail create a silhouette of compact rotundity that belies its swimming prowess. Standing beside a capybara, one appreciates its substantial presence, roughly equivalent to a large dog. Yet the capybara's claim to physical magnitude is entirely relative; beside creatures of greater mass, it appears rather modestly proportioned. A capybara weighs approximately one ten-billionth of a medium-sized mountain, a ratio that renders comparison almost absurd.
Mountain
The mountain's physical magnitude operates in categories for which the capybara has no meaningful reference point. Mount Everest weighs approximately 357 trillion kilograms, a figure that requires scientific notation to render comprehensible. Even modest peaks contain more mass than all capybaras who have ever lived combined, multiplied by several million. The Himalayas as a whole comprise roughly 70 quadrillion kilograms of rock and ice, a number so vast that human cognition simply rounds it to infinity. Mountains create their own weather systems, cast shadows visible from space, and feature on maps regardless of scale. When a capybara stands before a mountain, it confronts something for which evolution provided no adequate psychological preparation. The mountain wins this category so decisively that continuing analysis feels somewhat cruel.