Capsize (Ex): A submerged dragon turtle that surfaces under a boat or ship less than 20 feet long capsizes the vessel 95% of the time. It has a 50% chance to capsize a vessel from 20 to 60 feet long and a 20% chance to capsize one over 60 feet long.
really, dragon turtle is the only one? odd! well, a few of the Monster Geographica creatures did, but i guess dragon turtle might be the only WotC creature that does. given that a dragon turtle is only Huge, do you think it would be a good idea to increase those numbers?
Capsize (Ex): A submerged verme that surfaces under a boat or ship less than 20 feet long capsizes the vessel 95% of the time. It has a 75% chance to capsize a vessel from 20 to 60 feet long and a 50% chance to capsize one over 60 feet long.
I think that the less than 20ft chance should remain 95%, because there's always a chance... Of course, I also think that a successful Profession (sailor) check should avoid capsizing. I just don't know what the DC should be.