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Elephantiasis is caused by obstruction of the lymphatic system, which results in the accumulation of a fluid called lymph in the affected areas. Functioning as part of the immune system, the lymphatic system helps to protect the body against infection and disease.
How many legs does this elephant really have? Count them carefully, then count once more. Rather than being mistakes of our visual interpretation, optical illusions such as these are clever design changes on the part of the artist. We cannot make sense of the elephants legs in this simple line drawing, only his left back leg. This leg is correct. The others have had their feet removed and placed between the original four legs, so that he has four original legs, only one with a foot attached, and 4 other legs with 4 feet.