And does anybody know the name of the parasite that lives in African lakes which after infecting humans starts growing in their bodies up to couple of meters (French doctor who worked on this 'tapeworm' said that removing them is slow and painful process that can last up to couple of days and the worst case was removing 5 meters of parasite trough the patients urethra)... The interesting part is his claim it influences the victim mind to go to water repeatedly, although he's been telling them that infection is spread through lakes and they know about it... (after it reaches the full growth parasite wants to return to water so it can finish its reproduction cycle) I don't know about you, but if someone extracted 5m tapeworm trough my urethra during 2-3 days (so it doesn't snap) I'd be avoiding lakes no matter how hot it is!

I worked for a summer during college in an entemology lab, capturing caterpillars from corn and brassica fields and observing them. About a tenth carried tiny parasites (fly and wasp larvae) that you could sometimes see through the skin. You could tell when it was time because the caterpillars would climb onto the top of the petri dish and just wait there, as the larvae, which were one to twenty tiny, white worms would eat their way through the skin and immediately form cocoons around the slowly dying caterpillar. A few days later, you'd have a new fly or wasp buzzing around the petri dish. That was a very formative summer.