Free the Hippos

Mr. Hippo
don't be caged like a bird
don't be swimming in shallow, man-made pool water
Z is for zoo: the end
as in the last place you deserve
last time man tamed beast
whales went crazy in some worlds
per Pi, Richard Parker ended up on a boat
c/o Universal, park raptors ate their captors
do a barrell roll in your pool
make waves
open your large mouth in protest
make the front page
"Hippo Breaks Free"
and they'd change the zoo sign accordingly
you were meant to navigate rivers
and battle crocodiles
if you ran away from the zoo
at your fastest for an hour
you'd cover 30 miles
you are the torpedo of the Nile
3,000 lbs of power wrapped in oily skin
crashing into the tanks
you would have been boiled in