For obvious reasons, tarantulas strike fear the hearts of many people. They are big, they are hairy, and they stalk around in a rather manner. The largest of all of them is the goliath tarantula from South America. Although humans are often afraid of these spiders, in their native environment of the South America coastal rain forests, they prey to many forest animals, for whom such a large, protein-packed meal would be a real To protect itself in these forests, the goliath tarantula has evolved some unique ways of defending itself. it find itself confronted by a predator, the first thing this spider does is to warn the by rubbing its bristle clad legs together, making a rasping sound. If the predator has come across one of these spiders before, it knows what follows these warning stridulations and off. If the predator is naïve, then it presses on and further tests the spider. The big tarantula must then to its next line of defense.