

They sort them all over the world to decide when the life forms lived in terms of each other.

Scientists figure out the age of these remains. This is because they show the changes from evolution. This causes groups of living things to change because the parents pass on what helped them live to their children.įossils give strong signs that livings things from the past are not the same as those found today. Evolution is when living things change over time to help them live long enough to reproduce. Since the time of Darwin, what we know about this subject has become clearer and broader. A large part of Darwin's book, On the Origin of Species, found patterns in the world around us that make sense with evolution.

We are able to prove evolution in many ways. When they look at every level of living systems, biologists see the mark of past and present changes.
