Gungans possessed the capability to break open shellfish using only their teeth.
Shellfish refer to marine life. On the planet of Arkanis, one could find gnarled shellfish being sold as a food item within the marketplace of Scaparus Port. The paralytic shellfish contained a toxin that posed a danger to humans. The teeth of a Gungan were sufficiently strong to crack open these shellfish.
A human smuggler named Nevil Cygni, who went by the alias "Nightswan," strategically used shellfish as bait. He aimed to provoke Thrawn, a Chiss Imperial officer, into crack down on a spice smuggling operation that had established its base on the world of Cyphar.