 The Cretaceous had a much warmer climate than today; the waters inhabited by "Baptornis" were subtropical to temperate.While it was excellently adapted to swimming and diving, "Baptornis" is thought to have been clumsy on land, pushing itself along the rocks with its feet rather than actually walking.The natural position of the lower legs was flush against the body, with the feet stretched out sideways and thus it would have been unable to move upright without toppling over.