An international research team has assembled the genome and 3D chromosomal structures of a 52,000-year-old woolly mammoth—the first time such a feat has been achieved for any ancient DNA sample. An international research team has assembled the genome and 3D chromosomal structures of a 52,000-year-old woolly mammoth—the first time such a feat has been achieved for any ancient DNA sample. Molecular & Computational biology Paleontology & Fossils Phys.org – latest science and technology news stories