| Answer | Crossword Clue |
|---|---|
| OSMIUM | Densest metal |
| PEI | Canada's densest prov. |
| OSMIUM | Densest natural element |
| OSMIUM | Densest stable element |
| SEAOTTER | It has the densest fur of any animal |
| SEAOTTERS | Creatures that have the densest fur of any mammal (up to 1 million hairs per square inch) |
