One fish said to the other

in uniformed rows of two
went the school to the zoo
with knowledge deficient
plus a teacher most patient
for in murky waters deep and dark
hid information, ready to spark
tender minds with wicks alight
eager eyes, shining so bright
an eerie glint in his eye
the educator began to cry

"here the primates of past
ogled and goggled aghast
mighty tiger, flighty mouse
scrunchy rabbits, ruffled grouse
had men some contemplation
noticed, they would have, indications
of rising waters and falling skies
humanity said: "what's for dinner, pie?"
content with their lives contemptible
they refused to be compatible
with mother nature's sobs and pleas
saying blithely: "there is only we"
the seas rose and mountains tumbled
and homo sapiens yelled and grumbled
"we don't deserve this," they said
as their bill, in full, was paid
follow the signs down the road
covered in mud, speckled with mould
this way to their demise
(not like it was a surprise)
see the graveyards of civilizations
now silent through purification"

exeunt teacher fish, stage left
enter tuna school, bereft
"my brains are bulging," said one
"quite frankly, I'm overcome"
they floated past ruined crowns
magnificent structures now come down
they paused before boneyards wide
stared at monuments once deified
and together agreed without fail
humanity was a cautionary tale