関連ワード:  python boa constrictor size    python vs boa constrictor size    boa python snake size    ball python vs boa constrictor size    burmese python vs boa constrictor size    boa constrictor vs reticulated python size    are boa constrictors bigger than pythons    are boas or pythons bigger    how big can a boa snake get    average boa constrictor size