scibri writes: Researchers have constructed 3D portraits of two 305-million-year-old insect nymphs by scanning their fossils with X-rays. The results, reported in PLoS ONE, are the most detailed pictures yet of juvenile insects of that period. One of the specimens, characterized by sharp spines on its body and head, belongs to an unknown species and genus. The authors have called it Anebos phrixos, from the Greek meaning "young and bristling". The other is similar to a modern cockroach.