Last seen in:
- Thomas Joseph - King Feature Syndicate - Nov 8 2023
- Thomas Joseph - King Feature Syndicate - Aug 18 2022
- Thomas Joseph - King Feature Syndicate - Nov 11 2021
- Thomas Joseph - King Feature Syndicate - Oct 2 2021
- Thomas Joseph - King Feature Syndicate - Aug 1 2019
- L.A. Times Daily - Sep 10 2018
- The Washington Post - Sep 10 2018
- Thomas Joseph - King Feature Syndicate - Feb 7 2018
- L.A. Times Daily - Jan 16 2017
- Wall Street Journal - Jan 14 2017 - Alien Invasion
Related Clues:
- Long cold spell
- Period ending about 9000 B.C.
- Major cooling-off period
- Geologicial time period
- Wintry stretch
- Pleistocene, e.g.
- Period on a geologic time scale
- Distinctive historical period
- Freezing period
- Geologic span
- Very long cold snap
- When mastodons roamed
- 2002 movie with Manny the Mammoth
- Period of advancing glaciers
- Mammoth period?