In this deck, we'll explore the evidence that supports the theory of evolution. We will look at how the fossil record provides a window into the past, and how we can observe evolution happening today in bacteria. We will also cover how new species are formed and why some species disappear forever.

One of the most powerful pieces of evidence for evolution comes from fossils. Fossils are the preserved remains or traces of organisms that lived millions of years ago. They are usually found in rocks, and are formed when the hard parts of an organism, like bones or shells, are replaced by minerals as they decay.

By arranging fossils in chronological order based on the age of the rocks they are found in, scientists have created the fossil record. This record shows how organisms have gradually changed over time. In general, simpler life forms are found in the oldest rocks, while more complex organisms appear in more recent rocks.