This kind of shallow stream system seems to be the place where many features of land-living animals first arose.

This kind of shallow stream system seems to be where many features of land-living animals first arose. The species shows that evolution from life in water to life on land happened gradually in fish in shallow water.

We found something that really split the difference right down the middle.

The neck was one of the biggest surprises. This freed the skull from the shoulder girdle and gave the animal extra mobility.