Society of Investigative Sciences (working title)
Not much is known about Abominations. They are biological creatures that are not natural to Earth. It is unknown where they came from, but they always appear fully grown. They are fertile amongst themselves, and some benign (and not so benign) varieties have flourished and bred extensively, to the point that some pioneers have domesticated them, or keep them as herd animals. All Abominations seems to come from remote areas of the American West, and have been present for at least a century. In the last two decades (since about 1887), the number of appearances has increased exponentially. It used to be that an Abomination would appear every year or two, then every month. There are now sightings of new Abominations, most of them harmless, flowing into the SIS on a weekly basis.
Physically, Abominations are bizarre creatures, which is how they earned their name. They may appear as a mash-up of Earth creatures, like the Buster Cows so prevalent on the plains, which are a mix of fish and elephants. Those that are vaguely familiar are the most common. At least a quarter, though, are terrifyingly strange. They are like nothing ever seen on Earth, and while some are beautiful, many are disgusting or dangerous.
All Abominations have a brackish ichor, called ectoplasm, instead of blood.