Name of Civilization: Slimilili
Leadership Style: Monarchy (Matriarchy)
WARNING! You have no idea how difficult it is trying to find good slime pics that don't involve something "naughty." This is literally the best I could find.
Powers of race: Consumption Evolution (To grow, these slimes have to eat things and break them down to convert them into more slime for their bodies. Strangely, sometimes eating particular objects leads to a physical change in their appearances, as shown by the queen slime. They can also randomly attain abilities of what they eat.
Unique traits: Strangely enough, they grow through consumption. What they eat changes how they look. Though their personality is a work of their own, they can look like they have an entire body of pure slime, or a partial body of slime with physical objects of what they had enveloped. Whatever they eat gets converted to slime most of the time, though they do have a bit of control over what they eat.
God or Goddess: Miriam
Location: Polynesian Islands, and one island that acts as the capital of the slime kingdom.
Other: There are rumors that Slimes have the ability to enter and possess other beings. This is false, as that would assume that they entered the body and broke down the innards of an individual. Slimes cannot envelop and break down currently-living beings. They'd have to be deceased to be edible.
Aside from that, they tend to be tinkerers of sorts. Though building things is more like their version of cooking, they come up with some nifty inventions.
Strangely enough, the creation of the Slimilili was completely on accident. Miriam was toying with a mortal's blood clot that she preserved and accidentally sneezed on it. Finding it gross, she tossed it onto a random island, where it moved on its own and began eating everything that was dead or non-living. Eventually it grew so large that Miriam came down to fight it. When it saw her, it moved joyously and split up into a bunch of slime people.
Not wanting to make more trouble than she already had, Miriam ended up teaching them herself, and transporting the excess population to other islands. Soon enough, they formed a kingdom, with a royal family that Miriam picked out.