ScienceDrawing the lineTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceConor Dillon | Gabriel Borrud06/18/2019June 18, 2019What we smell influences our intestines, how a "smart school" in China spies on its pupils, and facial recognition software… for pigs.https://p.dw.com/p/3ETVdAdvertisement