Guinea pigs don,t come from Guinea and they are not pigs. Turkeys don't come from Turkey. The are native to North America. Silverfish are insects, not fish. I guess there is a lot of things (animate or inanimate) that has a name that doesn't fit. Another eggsample (see my other thread.(Easter eggs). The black box flight recorder isn't black, its orange. Can you think of any more wrongly named items.