The Transition From Water to Land

There wasn't a whole huge community of people working on trying to find the intermediate fossils effect at the time. You really have to be looking for them to find them and it's high risk effort to do that. So we started actually very low risk in Pennsylvania. These are rocks that are about 365 million years old. And guess what? If you look carefully, which we did, you start to find fossils of some of the earliest fish to walk on land.