Zorkaberries are purple, bitter-tasting berries similar in size and form to terrestrial blueberries. For Tamaraneans, they are a popular delicacy, though this may be a taste for humans to get used to. It is not known how and under what conditions these berries grow in Tamaranean nature.
Though apparently harmless to humans, the zorkaberries had an unusual effect on the mutant larva Silkie. After consuming the berries, he grew from a size of about 3 feet to a grotesquely massive ten feet within seconds.