Frozen mammoth skin retained its chromosome structure - Ars Technica
- Frozen mammoth skin retained its chromosome structure Ars Technica
- Fossils of ancient chromosomes found for the first time in 52,000-year-old woolly mammoth skin CNN
- A Mammoth First: 52,000-Year-Old DNA, in 3-D The New York Times
- Freeze-dried woolly mammoths share their genetic secrets with scientists The Washington Post
- What killed the last woolly mammoths? National Geographic