Archaeologists discover ancient tools dating back millions of years

Just over 50 years ago, paleontologist Donald Johnson unearthed the remains of "Lucy," an ancient human relative who lived more than 3 million years ago. Now, another group of scientists have found new clues about what life was like in Lucy's time, including the surprising discovery of early tools dating back three million years. "CBS Saturday Morning" co-hosts Michelle Miller and Dana Jacobson deliver two hours of original reporting and breaking news, as well as profiles of leading figures in culture and the arts. Watch "CBS Saturday Morning" at 7 a.m. ET on CBS and 8 a.m. ET on the CBS News app. Subscribe to "CBS Mornings" on YouTube: https://youtube.com/CBSMornings Watch CBS News 24/7: https://cbsnews.com/live/ Download the CBS News app: https://cbsnews.com/mobile/ Follow "CBS Mornings" on Instagram: https://instagram.com/cbsmornings/ Like "CBS Mornings" on Facebook: https://facebook.com/CBSMornings Follow "CBS Mornings" on Twitter: https://twitter.com/CBSMornings Subscribe to our newsletter: https://cbsnews.com/newsletters/ Try Paramount+ free: https://paramountplus.com/?ftag=PPM-05-10aeh8h For video licensing inquiries, contact: licensing@veritone.com