Related Clues:
- Fodder for Ripley's column
- Two-headed calf, for one
- David Bowie's 'Space ___'
- A curiosity
- It's not normal
- Entry for Ripley
- Weird - it is last healthy rare bird
- Outlier
- Out-of-line result
- Irregular result
- Abnormally shunning BR line? It turns up irregularly
- Not even I try extremely rare thing
- Special case of a number reduced by 50 within month
- Old man almost involved in some irregularity
- Curiosity - one's mathematical quality?