Historical clue formulations

• Skink or gecko — 2021-05-01
• Turtle or tuatara — 2020-07-02
• Chameleon or iguana — 2019-09-30
• Chameleon, e.g. — 2016-08-05
• Chameleon, e.g. — 2016-07-22
• Scaled-back thing? — 2011-03-26
• Snake or alligator — 2008-07-07
• Creepy crawler? — 2006-12-09
• Despicable sort — 2004-02-20
• Cold-blooded one — 2001-11-04
• Dinosaur, e.g. — 1997-09-02
• Skink, for one — 1995-12-09