first_imgThis week, we chat about kissing communication in ants, building immune strength by climbing the social ladder, and a registry for animal research with Online News Editor David Grimm. Plus, Science’s Alexa Billow talks to Bjorn Emonts about the birth of stars in the Spiderweb Galaxy 10 billion years ago.   Related research on immune function and social hierarchy.   Listen to previous podcasts.   [Image: Lauren Brent; Music: Jeffrey Cook]last_img