| Test rodent |
| Maze solver |
| Maze runner |
| Test subject |
| Maze explorer |
| Maze scurrier |
| A-mazing animal? |
| Research subject |
| Experiment critter |
| Experiment runner? |
| Many a maze runner |
| Scurrier in a maze |
| Small test subject |
| A maze-ing critter? |
| Experimental animal |
| Experimental runner |
| Tiny maze navigator |
| Maze-solving rodent |
| Maze-running rodent |
| Maze scurrier, maybe |
| Unwitting test taker |
| Many a maze navigator |
| One of a study group? |
| PETA might rescue one |
| Cheese-chasing captive |
| Animal in an experiment |
| On-the-move maze solver |
| Bewhiskered test subject |
| Test subject with whiskers |
| Animal used in experiments |
| Maze runner in an experiment |
| Animal running through a maze |
| One taking a lot of drugs, perhaps? |
| Rodent used for scientific experiments: 2 wds. |
| Test subject running in a maze, perhaps: 2 wds. |