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
Recreational drug use part of the milieu of drug taking. The reasons for drug use appear to have as much to do with needs for friendship, pleasure and status as they do with unhappiness or poverty. Becoming a drug taker, to many people, is a positive affirmation rather than a negative experience.” Anthropological research has suggested that humans "may have evolved to counter-exploit plant neurotoxins". The ability to use botanical chemicals to serve the function of endogenous neurotransmitters may have improved survival rates, conferring an evolutionary advantage. A typically restrictive prehistoric diet may have emphasised the apparent benefit of consuming psychoactive drugs, which