Anywhere it wants. OK, they don’t really expectorate. So Johns Hopkins University School of Nursing (JHUSON) saliva expert Douglas Granger has done a bit of improvisation. Now, few humans would drool at the chance to swab the inside of a quarter-ton sea lion’s mouth. There's the fishy breath, naturally. And did we mention the canine teeth? Gumdrops and lollipops it isn't.