Why do walruses look so weird?

Why do walrus look the way they do? Why do they have such long tusks? Do they have other teeth? Do walruses migrate? We learn all about these majestic giants with Adam Ratner of the Marine Mammal Center in Sausalito, California.
Download our learning guides: PDF (npr.brightspotcdn.com/26/7f/cac093c94d998eab5d…) | Google Slide (docs.google.com/presentation/d/1PtskNbKq2JUBhk…) | Transcript (npr.brightspotcdn.com/21/e0/a536b9474cc7812f30…)