Today's Question - Make mine a double - plurals are usually formed by adding "s", but there are at least two body parts that change vowels to form their plurals. What are they?

Reveal Answer Answer \xe2\x80\x93 Lots of folks went to Gray's Anatomy to find body parts to pluralize. We didn't mean to be humeris \xe2\x80\x93 we were thinking of tooth and foot.

Doesn't match      Missing info      Like question