A long-lost continent once sitting between India and Madagascar now lies at the bottom of the Indian Ocean, according to a report published Tuesday. Lewis Ashwal, a scientist at the University of Witwatersrand, initially discovered in 2013 that the island of Mauritius had a stronger gravitational pull than other parts of the Indian Ocean. Ashwal and his team theorized that the island was sitting on a piece of a sunken continent. According to the report, the team of scientists found zircon crystals that were up to 3 billion years old even though Mauritius is only 8 million years old. Zircon crystals already located on the island’s beaches have been dated at 2 billion years old. Researchers believe