Katie on the run from a group of bloodthirsty penguins, so here's a re-run of our episode on the freakiest teeth in the animal kingdom. And if you think it's silly to be afraid of penguins, wait until you see inside their MOUTHS. Footnotes: https://docs.google.com/document/d/1yE2Oh8FIciFwlW6l-dJbhc1FaK5XcwAdwQWe19TcGHA/edit?usp=sharing