Avocado
Individual avocados demonstrate alarmingly brief lifespans. From harvest to compost, the average specimen persists for merely two to three weeks, with the edible window representing a fraction of this period. The species itself has existed for approximately 10 million years, having evolved alongside now-extinct megafauna. Climate projections suggest suitable growing regions may shift significantly within the coming century.
The Moon
The Moon has maintained its orbital position for approximately 4.5 billion years and is projected to continue for billions more. It is gradually receding from Earth at a rate of 3.8 centimetres annually, but this process will not meaningfully impact its presence for hundreds of millions of years. The Moon has witnessed the entire history of life on Earth and will likely outlast our species by an inconceivable margin.