xLoess : An aeolian sediment formed by the accumulation of wind-blown silt and lesser and variable amounts of sand and clay that are loosely cemented by calcium carbonate. Loess is usually homogeneous, highly porous, and is traversed by vertical capillaries t
Scientists have discovered two fossil skeletons of an ancient human ancestor – a species related to humans that had never been found before. The fossils, a young male and an adult female, formed almost...Read more