It spits an extremely slimy and sticky colourless goo at enemies.
The goo has no immediate effect on the target until they try to wash it off, which activates a chemical reaction causing the goo to act like an acid such as Fluoroantimonic acid.
Whatever is left of the target, even if it's just a melted flesh puddle, is immediately consumed by the SD.
The only noises SD's make are horrible and grotesque slurping and crunching noises while eating, other than that they do not make any verbal noises.
They like to inhabit wet and dingy abandoned structures, especially if there's a source of water near by.

They are also known to make lure traps.
they will go and find any big and recently abandoned buildings and make it looked inhabited (uninviting debris are removed from the surrounding area and simple traps such as bear traps will be set up), they will then scavenge items that are considered essential by humans (usually empty guns, cans of food, and empty boxes of ammo are collected) and cluster them inside the building. The items will be placed in a corner of a large room. Using their big shovel like hands, they will then begin to dig out a pit fall around the cluster of items. The pit falls are hidden with great diligence and care, making them almost completely invisible.
Most of the time the pit falls will drop into concrete cellars or basements, crippling or killing anything that falls in.

The SD's have no trouble retrieving copses from the pit falls, as their hind legs have enough power to propel themselves upwards, clearing the pit with a single leap.

Originally done in November 5, 2011