Assassin bugs are predatory insects of the Reduviidea family. Some of the species in Central and South America are able to transmit to humans a fatal malady known as Chagas disease. It is this very insect that poisoned Darwin and caused him to spend the rest of his life in pain. This species uses its antenna to inject its poison and liquefies its victim"s tissues. Its identical ancestors had the very same extraordinary defense system 25 million years ago. At that time, they employed the very same methods and led their lives in the very same way. The fossil record makes it clear that the insect of 25 million years ago was in no way primitive and that it displayed no differences from those alive today. This is yet another of the species that put Darwinism in an impasse.