| Clue | Source | Date |
|---|---|---|
| Wood louse that rolls up when threatened | Wall Street Journal | 23 Jun 2025 |
| Arthropod that can roll into a ball | New York Times | 09 Nov 2020 |
| Isopod that can roll into a ball | The Washington Post Sunday | 22 Apr 2018 |
| Little crawler sometimes called a roly-poly | The Washington Post | 12 Dec 2016 |