It's time now for our regular science news roundup with our friends at NPR's Short Wave podcast, Regina Barber and Rachel Carlson. Good to have you both here. RACHEL CARLSON, BYLINE: Hey, Ari. REGINA ...

A smiling photo generally makes you more likable and credible. A study just published in the Journal of Consumer Research looked at the effect of smiles in Airbnb host photos by analyzing eight months ...

Yo, let’s talk about the axolotl, the coolest little water monster you’ve ever laid eyes on. This funky creature, with its perma-smile and frilly gills, is straight-up stealing hearts as the ultimate ...