Capybara
The capybara has spent approximately 10 million years perfecting its relationship with semi-aquatic environments. These magnificent creatures possess webbed feet specifically evolved for navigating murky waters, and their eyes, ears, and nostrils are positioned atop their heads like biological periscopes. They can remain submerged for up to five minutes, evading predators with the casual indifference of a creature that has thoroughly solved the swamp equation. Their barrel-shaped bodies are hydrodynamically optimised, gliding through water with an efficiency that would make naval engineers weep with admiration. The capybara does not merely inhabit the swamp; it has become one with the swamp.
Shrek
Shrek's swamp credentials, whilst impressive within the animated realm, are fundamentally residential rather than evolutionary. He chose swamp life as a lifestyle preference, constructing an impressively cosy dwelling complete with modern amenities including a mud shower and an outhouse. His famous declaration that ogres, like onions, have layers speaks to a philosophical understanding of swamp life, but he notably requires constructed barriers and signage to maintain his territory. The swamp serves Shrek well, yet one suspects that with minor adjustments, he could adapt to a pleasant cottage in the Cotswolds. His relationship with his wetland home is that of a devoted tenant rather than an apex resident.