Pearl human intervention. They are quite small, typically only a few millimeters. Keshi pearls are produced by many different types of marine mollusks and freshwater mussels in China. Keshi pearls are actually a mistake in the cultured pearl seeding process. In seeding the cultured pearl, a piece of mantle muscle from a sacrificed oyster is placed with a bead of mother of pearl within the oyster. If the piece of mantle should slip off the bead, a pearl forms of baroque shape about the mantle piece which is entirely nacre. Therefore, a Keshi pearl could be considered superior to cultured pearls
Pearl Krabs Grandma's Apron, a store for elderly residents on the ground floor of the shopping center. Beatrice, her boss at Grandma's Apron, is voiced by actress Betty White. The disparity in species between Pearl and her father has never been explained directly in an episode, but merchandise makers and production crew members have stated that Mr. Krabs was once married to a whale who gave birth to Pearl. A trivia book penned by former "SpongeBob" writer David Fain in 2000 states that Pearl "takes after her mother," implying that she is the biological offspring of Mr. Krabs and a whale. According