blog posts Did a 'volcanic winter' wipe out the toolmakers of Sumatra 74,000 years ago? Feb 26, 2020 11:00 am by ScienceIllinois in the News Share on Facebook Tweet Email Images Science (Feb. 25) A new study suggests they survived the eruption and thrived for another 50,000 years. Illinois anthropologist Stanley Ambrose questions the study's conclusions. Share on Facebook Tweet Email