Ice Age 2: The Meltdown (2006)

Continuity mistake: In the scene where Scrat gets attacked/attacks the piranhas, the acorn gets swallowed by a piranha on the right, after all the fighting, Scrat jumps on a piranha on the lower left, which spits out the acorn. (00:35:20)

Manny: Don't listen to him, folks. Fast Tony would sell his mother's ashes for a grape.
Fast Tony: Is that an offer?

Ssiscool

Trivia: The movie contains a spoof of Saving Private Ryan, where Manny is hit by a geyser and temporarily loses his hearing. Incidentally, the German voice for Manny, Arne Elsholtz, also synchronizes Tom Hanks, who also stars in that movie, which creates an inside joke by happenstance in the German version.

Question: What species are the water creatures that Manny fights against at the end of the movie?