NBCUniversal Inc. October 21, 2019 5:20 pm Researchers Believe Virgin Shark Births Occurred in Japan Researchers believe they have found sharks born with no paternal DNA in an aquarium in Japan. US & World Videos 8:39 Gina Rodriguez gushes 0ver motherhood with son Charlie 2:22 Scarlett Johansson and Colin Jost have date night at White House Correspondents' dinner 2:09 President of MIT calls for shutting down pro-Palestinian encampments 3:57 Pleasant Sunday despite morning showers 1:00 Three dead in apparent murder-suicide in Lowell