Plague of Dead Sharks (by Alan Dugan)

Who knows whether the sea heals or corrodes?
The wading, wintered pack-beasts of the feet
slough off, in spring, the dead rind of the shoes’
leather detention, the big toes’ yellow horn
shines with a natural polish, and the whole
person seems to profit. The opposite appears
when dead sharks wash up along the beach
for no known reason. What is more built
for winning than the swept-back teeth,
water-finished fins, and pure bad eyes
these old, efficient forms of appetite
are dressed in? Yet it looks as if the sea
digested what it wished of them with viral ease
and threw up what was left to stink and dry.
If this shows how the sea approaches life
in its propensity to feed as animal entire,
then sharks are comforts, feet are terrified,
but they vacation in the mystery and why not?
Who knows whether the sea heals or corrodes?
What the sun burns up of it, the moon puts back.