Why are giraffe tongues blue? - A Moment of Um extra

Wow, wow, wow! Our new Moment of Um podcast is finally here. Check out this sample episode, and subscribe to Moment of Um in your podcast player. There are already five episodes just waiting for you to listen, and there’s a new one every weekday. Do you have a head-scratcher that you think would make a great Moment of Um episode? Head over to BrainsOn.org/contact to let us know about it. See omnystudio.com/listener for privacy information.