Bear
Bears demonstrate remarkable resilience, capable of surviving harsh winters through hibernation, enduring gunshot wounds, and recovering from territorial battles that would fell lesser creatures. However, their average lifespan ranges from 20 to 30 years in the wild, limited by environmental factors, hunting, and the inexorable march of biological entropy.
Lego
ABS plastic, LEGO's primary material since 1963, exhibits extraordinary longevity. Independent testing confirms that LEGO bricks maintain structural integrity for over 1,300 years under normal conditions. Bricks manufactured in the 1960s remain fully compatible with those produced today. A LEGO brick dropped in the ocean will outlast the civilisation that created it.
VERDICT
The mathematics here prove insurmountable. Whilst the bear represents an impressive feat of biological engineering, LEGO's 1,300-year durability eclipses the ursine lifespan by a factor of approximately 52. Future archaeologists will unearth LEGO bricks long after bears have evolved into something unrecognisable.