Dog
The domestic dog demonstrates a lifespan ranging from 10 to 13 years for most breeds, with smaller varieties occasionally exceeding 15 years under optimal care conditions. During this operational period, the dog maintains continuous functionality, responding to commands, providing companionship, and adapting its behaviour to household requirements. Repair and maintenance occur through veterinary intervention, with annual check-ups recommended and emergency services available for acute malfunction.
Dogs display remarkable resilience to environmental conditions, having accompanied humans across arctic tundra, tropical rainforests, and the full spectrum of biomes between. Their self-repair capabilities include wound healing, bone knitting, and immune responses that neutralise most pathogenic threats without external intervention.
The psychological durability of dogs proves equally impressive. Studies indicate that dogs recover from traumatic experiences more rapidly than humans, displaying what veterinary behaviourists term adaptive emotional resilience.
Banana
The banana exists in a state of accelerated temporal decay. From the moment of harvest, enzymatic processes begin converting starches to sugars whilst the peel progresses through its characteristic colour changes. At room temperature, the window of optimal consumption spans approximately 3 to 5 days. Beyond this period, brown spotting indicates cellular breakdown, and the fruit transitions from food item to compost material.
Refrigeration extends this timeline marginally whilst inducing peel discolouration that consumers find psychologically off-putting despite having no effect on internal quality. Freezing preserves the banana indefinitely but produces a textural outcome suitable only for smoothie incorporation.
A banana cannot repair itself. Bruising is permanent. Splitting is irreversible. The fruit lacks any mechanism for responding to damage beyond continued decomposition. Its durability, in practical terms, measures in days rather than years.
VERDICT
The dog's decade-plus operational lifespan compared to the banana's week-scale viability represents a durability differential exceeding 500:1. Dogs may require maintenance, but they persist. Bananas merely delay their inevitable return to organic matter.