| Rating | Solver | Clue |
|---|---|---|
| MAMMAL | Warm blooded vertebrate | |
| HEMATOTHERMAL | Warm-blooded. | |
| BIRD | A warm-blooded, feathered vertebrate provided with wings. See Aves. | |
| MAMMALS | Warm-blooded vertebrates | |
| HEMATHERMAL | Warm-blooded; hematothermal. | |
| HAEMATOTHERMAL | Warm-blooded; homoiothermal. | |
| HEMATHERM | A warm-blooded animal. | |
| HOMOTHERMOUS | Warm-blooded; homoiothermal; haematothermal. | |