A new series from NOVA traces how Homo sapiens survived, while other species died

Around 300,000 years ago, at least seven different species of humans roamed the Earth. But now, Homo sapiens are the only humans left. And a new television documentary series from The World's colleagues at NOVA digs into why that is. It's called "Human." British paleo-anthropologist Ella Al-Shamahi, hosts the "Human" series. She speaks to Host Carolyn Beeler.