A queen is generally the largest individual in the colony.
A large individual can produce 100 million eggs in twelve hours.
A large individual can consume over a tenth of its body weight at a single sitting.
The largest known individuals were between 10 and 12 meters (30 to 40 ft) long.
However, large individuals of this fish are territorial and may be somewhat aggressive to its own kind.
Furthermore, many large individuals are unable to completely close their shells.
The fish is said to be edible by humans, at least the larger individuals.
The largest individuals are estimated to have been over 107 cm in length.
"It would take one hell of a large individual to do something like that."
In the future, if conservation efforts pay off, these large individuals could be more common.