Historical clue formulations

• Tiny shape-shifters — 2025-01-31
• Things on the small slide? — 2020-10-31
• Slide presentations? — 2016-07-30
• Images on some lab slides — 2013-10-04
• They reproduce via mitosis — 2010-08-06
• Pseudopod formers — 2009-12-19
• They may be seen on slides — 2008-10-02
• Studies under a microscope — 2008-04-11
• They may be seen on slides — 2002-11-30