The stalkfort split from its ancestor and now rests on top of an iron stalk. It has this stalk to keep it away from any microscopic predators crawling around in the walls of the water table. It absorbs dissolved iron out of the water. Other than that it is the same as its ancestor.
Living Relatives (click to show/hide)
These are randomly selected, and organized from lowest to highest shared taxon. (This may correspond to similarity more than actual relation)