| 100% | INSECT | 6 | Creature found in group |
| 69% | WORM | 4 | Creature found in soil |
| 65% | MUSSEL | 6 | Seafood creature found in moules-frites |
| 63% | CULTUREBASED | 12 | Founded in certan group customs |
| 58% | CAMOUFLAGE | 10 | "Trick" used by the creatures found in rows 3, 5, 11 and 13 |
| 57% | KILLERWHALE | 11 | Creature found "swimming" in 16-, 22-, 28-, 42- and 47-Across |
| 54% | OPEC | 4 | Group founded by five oil-rich countries in 1960: Abbr. |
| 53% | AMINO | 5 | Atomic group found in glutamic acid |
| 53% | FRATERNITIES | 12 | Four groups found in this puzzle |
| 53% | PLO | 3 | Arab group founded in 1964: Abbr. |
| 53% | NRA | 3 | Gun group founded in 1871: Abbr. |
| 53% | NOW | 3 | Feminist group founded in 1966 (abbr.) |
| 53% | WAAC | 4 | Mil. group founded in 1942 |
| 52% | CLOWNFISH | 9 | Nemo in Finding Nemo is this type of creature |
| 52% | PROTEIN | 7 | Food group found in fish, eggs, meat |
| 52% | BADGERS | 7 | Group of mammals found in a cete |
| 52% | HEDGEHOGS | 9 | Group of pincushions found in an array |
| 52% | VULTURES | 8 | Group of birds found in a venue |
| 52% | AMINO | 5 | ___ group (structure found in proteins) |
| 51% | GNOMES | 6 | Fantastical creatures often found in gardens? |
| 51% | TABERNACLECHOIR | 15 | Temple Square group founded in 1847 |
| 51% | NATO | 4 | International defense group founded in 1949 |
| 50% | OPEC | 4 | What group founded in 1960 currently has 12 members? |
| 50% | OPEC | 4 | Intl. group founded in 1960 with five members |
| 50% | NATO | 4 | International defense group founded in 1949: Abbr. |
| 50% | NAACP | 5 | Civil rights group founded in 1909: Abbr. |
| 49% | TURTLES | 7 | Group of shelled animals found in a bale |
| 49% | MANATEES | 8 | Group of aquatic mammals found in an aggregation |
| 49% | CHEETAHS | 8 | Group of spotted cats found in a coalition |
| 48% | ELITES | 6 | In groups |