LifestylePopular science on FacebookTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoLifestyle01/31/2017January 31, 201726-year-old Hashem Al-Ghaili, a Yemeni biologist living in Germany, makes the case for science with his infotainment videos. He's already collected about seven million fans on Facebook. https://p.dw.com/p/2WggCAdvertisement