Altered Species, earlier known as Rodentz, is a 2001 horror film directed by Miles Feldman and starring Allen Lee Haff, Leah Rowan, and Guy Veig.

A DVD Talk review said of the commentary, "We are treated to long periods of silence punctuated by the occasional muffled laugh.

A review by Staci Layne Wilson in her book Animal Movies Guide, said that "this ratty little fright-flick is cheesy at best".

Rob Lineberger, writing for DVD Verdict, said, "If only the filmmakers had followed their own tagline, "Hide the cheese…" The cheese is in full view, and it stinks to boot".

Noel Gross, writing for DVD Talk, said that the film is "Yawnsville story about a gaggle of cookie-cutter college kiddos who decide to get their party started at an abandoned building where a disgraced professor is trying to cure cancer by juicing lab rats full of glowing green goo a la Re-Animator."