| Answer | Crossword Clue |
|---|---|
| MOLE | Hill-building beast |
| ORANG | Nest-building beast |
| BEAVER | Dam-building beast |
| CAPITOL | Hill building |
| ANT | Hill-building hexapod |
| ANT | Hill-building insect |
| REDANT | Hill-building biter |
| ANTS | Hill-building insects |
| ANTS | Hill-building bugs |
| ANT | Hill-building bug |
| ANTS | Hill-building creatures |
| tunnels | An artificial underground passage, esp. one built through a hill or under a building, road, or river |
