Walking may have started underwater

http://www.sciencenews.org/view/generic/id/336927/title/Walking_may_have_had_wet_start

A new study has found that African Lungfish actually walk along the surface of the ocean. The lungfish has "slender, whiplike fins" that it's using to walk along the surface of the ground. Also, the lungfish is fairly closely related to early vertebrates, so the lungfish may be a new key figure in evolution from water to land.