First animals to set foot on land used TAILS to 'walk': Robot recreates strange waddle of mudskipper fish 360 million years ago

Early terrestrial animals dragged themselves through mud and sand to take their first'steps' on land 360 million years ago. Now, scientists believe the powerful tails they used as fish were more important than previously thought. They came to this conclusion by studying African mudskipper fish and building a robot modelled on the animal. Scientists believe the powerful tails early terrestrial mammals used as fish were more important than previously thought. Scientists believe ancient creatures used the powerful tails they relied on as fish to crawl across the mud and sand as they made the move onto land, some 360 million years ago.