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
Daniel Pearl through music. Pearl was born in Princeton, New Jersey to Ruth and Judea Pearl. His mother is of Iraqi-Jewish descent and his father is an Israeli of Polish-Jewish descent. His family moved to the Encino district of Los Angeles, when his father took a position with UCLA. His father, Judea Pearl, is a professor of computer science and statistics, and director of the Cognitive Systems Laboratory at UCLA. He has received the Turing Award. The history of the family and its connections to Israel are described by Judea Pearl in the "LA Times" article, "Roots in the Holy Land". Pearl