NHK Broadcast Satoh Unit's Jellyfish Story
NHK's signature morning program "Ohayo Nippon" broadcast OIST's recent study which was published in Nature Ecology & Evolution.
You can learn what makes jellyfish from here: https://www.oist.jp/news-center/press-releases/what-makes-jellyfish
The NHK report is temporaly available online: https://www3.nhk.or.jp/news/html/20190416/k10011885101000.html
It is also reported by NHK WORLD news (in English): https://www3.nhk.or.jp/nhkworld/en/news/20190416_12/