Where do poop and pee go on airplanes?

<p>Dogs come in <em>so </em>many different sizes, from the tiniest teacup terrier to the giant Great Dane. How did we get such a delightful assortment of these furry best buddies? We asked Brains On producer and archaeologist Anna Goldfield to help us find the answer.</p><br><p>Got a question that’s been <em>hounding </em>you? Send it to us at <a href="https://www.brainson.org/contact">BrainsOn.org/contact</a>, and we’ll make sure to <em>bark up the right tree</em>!</p><p>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.</p>