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:
- Mammoth period?
- Important historical period
- Pleistocene glacial period
- Animated film with Manny the mammoth
- Eocene, e.g.
- More than just a cold snap
- Historical stretch
- It happened back in cold-en days
- Oligocene, for one
- Historic cold period
- Period frozen in time?
- 2002 film about Manfred and Sid
- Long geologic time period
- More than a cold snap
- Super-cool time?