Avocado
The individual avocado presents a cautionary tale in impermanence. From purchase to decomposition spans merely 4-7 days under optimal conditions, with the window of perfect ripeness measured in hours. However, the Persea americana species demonstrates impressive staying power, having evolved approximately 10 million years ago during the Miocene epoch. Avocado trees themselves can produce fruit for over 400 years, though they take 5-13 years to bear their first fruit—a lesson in botanical patience.
Volcano
Volcanoes operate on geological timescales that render human lifespans insignificant. Mauna Kea began forming roughly 1 million years ago and continues its work today. Mount Etna has maintained continuous activity for approximately 500,000 years. Even dormant volcanoes may reawaken after millennia of silence—Yellowstone's supervolcano last erupted 640,000 years ago yet remains very much alive. The volcano's relationship with time operates on an entirely different magnitude.