larvae devour their host from the inside the behavior has been around for over thirty million years as shown by this specimen found in a fossil fly. the ancient fossils are being studied at the karlsruhe institute of technology each individual pupil was put into a special holder they were examined using radiation from the institute's synchrotron source it's a one hundred ten metre long storage ring in which electrons are accelerated leading to the emission of high intensity x. rays that can be used in a kind of c.t. scan to reveal the tiniest of details. samples that were empty all we could see was. we were a bit disappointed and then we suddenly had a stone where the water was staring right at us and the x. ray image. it wasn't to be the only find in all the scientists