August 14, 2019 8:18 am Robot Tail for Humans Being Developed by Japanese Researchers Researchers at Keiko University in Yokohama, Japan, are developing a robotic tail to help the elderly maintain their balance. US & World Videos 1:01 Biden administration plans to reclassify marijuana as a Schedule III drug 2:28 King Charles returns to public duties amid cancer diagnosis 3:10 Nicole Kidman gushes over family's support at AFI honor 1:39 Benny Blanco talks falling in love with Selena Gomez 3:26 Zendaya weighs in on ‘Challengers' love triangle: Art vs. Patrick?