Quick answer
The measurable difference
The 13 m Titanoboa reconstruction is four metres longer and roughly five times heavier than the 9 m, 227 kg upper anaconda comparison.
Why this matchup matters
Different bodies, not just different numbers
Anacondas are among the best living analogues for visualizing a giant semiaquatic constrictor, making Titanoboa's fossil vertebrae easier to translate into a body.
Human scale
How the gap feels
The four-metre gap exceeds two adult heights. Titanoboa's reconstructed 65 cm body diameter is more than twice the 30 cm upper figure used for the anaconda.
Evidence boundary
What the comparison cannot prove
Both figures sit near upper bounds. Titanoboa is inferred from fossils, while exceptionally long living snakes are difficult to verify reliably.