Although this article is based on canonical information, the actual name of this subject is pure conjecture. Please see the reasons for this title in the "Behind the scenes" section below, and/or the relevant discussion on the talk page.
Frozen sloths were creatures that got frozen along with other species.
One time, the amobia sloth, conodont sloth, amphibian sloth , and an ape sloth got frozen. As a coincidence, the order in which they were frozen seem to indicate the evolution line for Sid. The ice containing the sloths remained frozen and formed part of a vast ice cave in which various other creatures remained frozen as well.One day, a ground sloth named Sidney encountered the frozen sloth ancestors, while trying to get back to Manny, Diego, and the baby Neanderthal named Roshan.