Early humans likely prompted the demise of woolly mammoths, other ancient species

Early humans may have played a significant role in the demise of one of the most iconic ancient species -- the woolly mammoth -- and others like it, according to new research. Read more: ––– Subscribe to ABC News on YouTube: ABC News Digital is your daily source of breaking national and world news, exclusive interviews and 24/7 live streaming coverage. Download the ABC News app for the latest headlines and alerts: Watch 24/7 coverage of breaking news and live events on ABC News Live: Watch full episodes of World News Tonight with David Muir here: Read ABC News reports online: ABC News is the home to th