The animal evolve in the conditions the live in.
Because they show how other organisms evolved or became extinct.
fossils
Fossils show clear evidence that the earliest human species had many apelike features & have evolved over the years.
Fossils show that there have been many different species of organisms that have lived on Earth throughout its history. These fossils provide important clues about the evolution and biodiversity of life on our planet.
The order in which derived characters evolved
Fossils can show the kind of environment animals lived in millions of years ago. They can also show how certain animals have evolved. Artifacts can show the kind of society humans lived in at a certain time.
Fossil organisms are typically represented on an evolutionary tree, or phylogenetic tree, as branches that indicate their relationships to living species and other extinct organisms. These branches often include annotations or markers that denote the age of the fossils, helping to illustrate when these organisms existed in relation to one another. Fossils can also provide key information about ancestral traits and evolutionary transitions, highlighting how species have evolved over time.
Organisms can be preserved as fossils through several methods, including permineralization (minerals infiltrating bone or wood), natural casts (sediment filling in the shape of an organism), amber preservation (organisms trapped in tree resin), freezing (organisms preserved in ice), and desiccation (organisms dried out in arid conditions). Fossils can reveal crucial information about Earth's history, such as the types of organisms that existed at different times, evolutionary transitions, and past environmental conditions. They also provide insights into extinction events and the changes in biodiversity over geological time. By studying fossils, scientists can reconstruct ancient ecosystems and understand the Earth's climatic shifts.
they show us what our ancestors did or if we've evolved and we looked different then, they show us what we had back then, sometimes what happened back then, we can see how old certain items are to see when it was used etc.
One of the best sources of information on how an organism has evolved over time is through studying its fossil record. Fossils provide direct evidence of the organism's physical characteristics and can show transitions between different species. Additionally, comparing the genetic information of different species can also provide insights into their evolutionary history.
Fossils show that the organisms that were around a long time ago were not the same ones that are around now, indicate that life changes over time.
it can show a rocks age and what it has gone through