Specimen preservation refers to the methods used to maintain biological samples, such as plants, animals, or microorganisms, in a state suitable for study or display. This process is crucial in fields like biology, medicine, and paleontology, as it allows researchers to analyze specimens without degradation over time. Common techniques include freezing, drying, or using chemical preservatives. Proper preservation techniques help ensure that specimens retain their physical and chemical properties, making them valuable for scientific research and education. For example, herbarium specimens are often dried and pressed, while fossils may be stabilized with resins to prevent deterioration.