  The discovery of a sizeable asymmetry in the $\bar u$ and $\bar d$
distributions in the proton was one of the more consequential experimental
findings in hadron physics last century. Although widely believed to be related
to the fundamental role of chiral symmetry in QCD, a definitive verification of
this hypothesis has remained elusive. We propose a novel test of the role of
chiral symmetry in generating the sea flavor asymmetry by comparing the $\bar
d-\bar u$ content in the proton with that in the $\Delta^+$ baryon, where a
significant enhancement is expected around the opening of the $N \pi$ decay
channel. Recent developments in lattice QCD suggest a promising way to test
this prediction in the near future.
