Fossil specimens are precious relics of natural history, which record the biological forms and living environments that once existed on the earth. Through fossils, people can trace back millions of years to ancient ecosystems and understand how various organisms adapted to changing environments.

The formation of fossils usually requires specific conditions, biological remains are buried in a rapid deposition environment, and over time, minerals gradually penetrate these remains, eventually causing them to harden and fossilize. Different types of fossils include bone fossils, imprint fossils, resin fossils, and more, and each fossil provides unique clues to help us understand the lifestyle of ancient organisms and their relationship to the environment.

The shape and structure of fossil specimens are different, and through the observation of their morphology, it can be inferred that the body size, habits and existence period of the organism. For example, certain fossils may show large body sizes, suggesting that these creatures were important in ancient ecosystems, or even top predators. And some tiny fossils may represent basic groups of organisms that played key roles in the ecosystem.

In addition to the organisms themselves, fossils also tell us about the changes in the ancient environment. By studying the chemical composition and structure of fossils, scientists can infer the characteristics of the ancient climate and understand the distribution of land and oceans at that time. This information is crucial to our understanding of how the Earth developed, and it also provides a reference for predicting future ecological changes.

Fossil specimens are historical witnesses, carrying the secrets of time and leading us to explore the origin and evolution of life. They not only stimulate people's interest in nature, but also promote thinking about the diversity and evolution of life.