Sporopollenin is a robust biopolymer found in the outer walls of spores and pollen grains. It is known for its exceptional resistance to decay, making it one of the most durable organic materials. This property allows spores and pollen to survive in various environmental conditions, aiding in the reproduction of plants. The structure of sporopollenin is complex, consisting of long-chain fatty acids and phenolic compounds. Its unique composition not only protects the genetic material within but also plays a crucial role in the dispersal of plants and the evolution of land plants.