A species of ostracods believed to have been extinct for over 40 million years has been found living in a pond inside a cave in Korea. According to the state-run National Institute of Biological Resources on Tuesday, the tiny seed shrimp found in Uljin Cave belong to a genus called Frambocythere, whose existence on earth was evidenced only by fossil records, mostly from Europe, dating back as far as 135 million years. They were thought to have gone extinct about 40 million years ago as no fossil