POLARBEARS
| Date | Clue |
|---|---|
| 2015-10-26 | White hunters on a white landscape |
| 2011-08-20 | Ursi maritimi |
| 2008-03-21 | Sealing fans? |
| 2006-10-06 | Animals that are nearly invisible to infrared detectors |
| Date | Clue |
|---|---|
| 2015-10-26 | White hunters on a white landscape |
| 2011-08-20 | Ursi maritimi |
| 2008-03-21 | Sealing fans? |
| 2006-10-06 | Animals that are nearly invisible to infrared detectors |