Bullia digitalis proboscis into the prey to suck up soft tissues. Often gathers in large numbers to feed on dead and stranded jellyfish and bluebottles. Various plough shells on the southern African coast look similar, including "Bullia rhodostoma" on the south coast and "Bullia natalensis" (pleated plough shell) on the coast of KwaZulu-Natal. "B. digitalis" however does not have pleated whorls like the pleated plough shell. All the common plough shells on the coast can only de differentiated for each other by their colour. Bullia digitalis Bullia digitalis, the finger plough shell or plough snail, is a species of sea snail, a
Drug pollution Drug pollution Drug pollution or pharmaceutical pollution is pollution of the environment with pharmaceutical drugs and their metabolites, which reach the aquatic environment (groundwater, rivers, lakes, and oceans) through wastewater. Drug pollution is therefore mainly a form of water pollution. "Pharmaceutical pollution is now detected in waters throughout the world," said a scientist at the Cary Institute of Ecosystem Studies in Millbrook, New York. "Causes include aging infrastructure, sewage overflows and agricultural runoff. Even when wastewater makes it to sewage treatment facilities, they aren't equipped to remove pharmaceuticals." Most such pollution comes simply from the drugs having been cleared and