Historical clue formulations

• Polar bear, to seals — 2020-12-24
• Tyrannosaurus rex, for one — 2020-05-21
• One looking to grab a bite? — 2017-04-16
• Lion or wolf — 2001-12-15
• Shark or T. rex — 2001-08-07
• Wolf or lion — 2000-01-02
• Lion or coyote — 1996-12-23
• Hunter — 1995-03-24