Source: Bestiary 6, pg(s). 185
The titanoboa is an immense, non-venomous, swamp-dwelling snake. Titanoboas are ambush predators, and their colouration, typically grey-green and brown, serves to camouflage them effectively in their homes. A titanoboa is 45 feet long and weighs 2,500 pounds.
- Wikipedia:Titanoboa (extinct real-world animal)