However, most scientists don't believe these stories. They think the skulls are more Scientists have found marks on the skulls that they believe only more modern could make. Because of this, scientists are certain the skulls are not usands of years old. Instead, they think the skulls are from the 19th century. Scientis o point to the British Museums excavations The museum's archeologists have four ny oamerican objects, but they have never found a crystal Scientists say th more evidence to show they are fakes, and not really Mesoamerican. til we know more about the skulls, the mystery--and the debate will keep going