Eulg eaters (scientific name: Evisehda Consumus) are land animals that appear as blue squares with smiley faces. They are named due to the fact that they often eat eulg. A group of eulg eaters is often called a grid.
An eulg eater about to go on a journey to eat some eulg
https://wasteof.money/posts/66325f9078e0ba3832874437
It’s probably somewhere in the link in that post but if not it’s green and used similar to glue in some situations