Bizarre insect-like creatures discovered in Spanish cave

Yesterday an article was posted about some scientists who found one of the most ancient insects on the Earth. They were looking in a cave in Spain when they cam across the old creatures. There were three different types of creatures,Pygmarrhopalites maestrazgoensis, P. cantavetulae and Oncopodura fadriquei but they all usually have a tail that they can "spring" away from danger on. I think that this is important because we could learn a lot from these prehistoric creatures. These prehistoric creatures may also spread diseases to our world! We will need to study it further to understand them though.