AMEBAS
| Date | Clue |
|---|---|
| 2006-07-23 | Pseudopod formers |
| 2005-10-20 | Early zoology topic |
| 2000-08-29 | Single-celled protozoa |
| 2000-03-21 | One-celled pond dwellers |
| 1998-10-09 | Creeping protozoans |
| 1998-07-08 | They have pseudopods |
| 1997-12-04 | One-cellers |
| 1996-12-29 | They undergo mitosis |