Table 1. Vertebral and dental anomalies found in Scandinavian wolves born between 1978 and 2010.
| Category (sample size) | Type of Anomaly | Frequency (sample size) |
| Vertebral Anomalies (171) | Anomaly of the 6th cervical vertebra | 2.3% (4) |
| Blockvertebra | 0.6% (1) | |
| Cervical transitional vertebra (the 7th) | 1.8% (3) | |
| Hemivertebra | 0.6% (1) | |
| Lumbosacral transitional vertebra | 8.8% (15) | |
| Sacrococcygeal transitional vertebra | 2.3% (4) | |
| Reduction of a lumbar vertebra (from 7 to 6) | 2.3% (4) | |
| Thoracolumbar transitional vertebra | 1.8% (3) | |
| Dental Anomalies (131) | Hypodonty | 6.1% (8) |
| Malformed tooth | 0.8% (1) | |
| Mesioversion of a canine | 2.3% (3) | |
| Microdontia | 0.8% (1) | |
| Persistent primary teeth | 0.8% (1) | |
| Rotated teeth | 4.6% (6) | |
| Supernumerary teeth | 3.1% (4) |