Why do pugs have such scrunched faces?

Pugs! They’re adorable! The internet loves them for their sassy personalities and squishy faces. But how did the pug’s face get so smushed? Why are pug noses different from terrier sniffers or German shepherd snoots? We asked animal geneticist Jeffrey Schoenebeck to help us sniff out the answer.  Got a question that’s right in front of your schnozz? Send it to us atBrainsOn.org/contact, and we’ll find someone who NOSE the answer. See omnystudio.com/listener for privacy information.