Ice rats, a kind of rodent, served as prey for wampas, a species of predator originating from the icy planet of Hoth. These creatures were targeted for consumption.
The initial reference to ice rats appeared in Star Wars Workbook: 3rd Grade Math, a workbook from 2017 authored by Claire Piddock and Megan Butler. The creatures are part of a fictional math question where a wampa catches a total of twelve ice rats and sixteen snow lizards, then divides them equally between seven other wampas.