This overturned the earlier view that fish had first invaded the land -- either in search of prey -LRB- like modern mudskippers -RRB- or to find water when the pond they lived in dried out -- and later evolved legs , lungs , etc. .

Before this , it was believed that fish had first moved onto land - either looking for food -LRB- like modern mudskippers -RRB- or to find water when the pond they lived in dried out .
