| 2018-08-24 | Agouti relative |
| 2017-11-27 | Amazon rodent |
| 2017-11-25 | Prey for a jaguar |
| 2017-06-27 | Spotted rodent of South America |
| 2017-06-03 | Amazon rodent |
| 2014-09-27 | Rain forest rodent |
| 2013-10-26 | Spotted South American mammal |
| 2013-04-24 | Spotted rodent |
| 2010-10-17 | Spotted cavy |
| 2009-05-03 | Cousin of a guinea pig |
| 2008-05-09 | Cousin of a guinea pig |
| 2007-02-25 | Tropical rodent |
| 2006-11-18 | Cousin of an agouti |
| 2002-09-11 | Animal that resembles a guinea pig |
| 2002-02-23 | Amazon Basin creature |
| 2001-06-24 | Cousin of an agouti |
| 1999-06-11 | Spotted cavy |
| 1998-01-19 | White-spotted rodent |
| 1996-07-28 | South American rodent |
| 1996-02-04 | White-spotted rodent |
| 1994-06-09 | Edible rodent |