Sounds like a Scifi Channel movie.

would it be

a) malfunctioning cyborg war hippos?

b) hippos crossed with shark DNA?

or

c) years of cocaine exposure leads to mutations, etc?

d) SolRo trampled underfoot by hippos. Rises from the grave and is raped by guerrillas. His vagina births gang of crack addicted half mosquito half wrestlers. Defeated by lovable baby hippo Palanqo. Japan turns it into a hit manga. Palanqo invests the profits into Macintosh and saves all the hippos!

that's special

NOOO YOU HAVE 1 STARRED ME ONCE AGIN

That comma's a typo.

That comma's a spy!

"Hippos: take them or they'll eat you"