Related Clues:
- Porcupines, prairie dogs and pack rats
- Porcupines and prairie dogs
- About 40% of mammal species
- Mammals with continuously growing incisors
- Mice and the like
- Squirrels and chinchillas, e.g
- Squirrels and rats
- Creatures that make some jump on chairs
- Gnawers such as rats
- Mice, e.g
- Mice and beavers, e.g
- Mice and squirrels