Quote of the Day | 1204

When underwater, the animals pushed water past their gills while simultaneously pushing the glottis down. We descendants of these animals were left with vestiges of their history, including the hiccup. In hiccupping, we use ancient muscles to quickly close the glottis while sucking in (albeit air, not water). Hiccups no longer serve a function, but they persist without causing us harm—aside from frustration and occasional embarrassment.

Rob Dunn. ‘The Top Ten Daily Consequences of Having Evolved’

[x]#8029 fan zaterdag 4 december 2010 @ 10:47:54