LifestyleHans Fricke: Life in the deep blue sea To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoLifestyle09/12/2020September 12, 2020German marine biologist Hans Fricke feels at home submerged hundreds of meters beneath the sea. He’s researched the behavior of sea organisms for more than 50 years, & spent more than 10,000 hours underwater. https://p.dw.com/p/3iLsRAdvertisement