Flow Wolf

One flow wolf is dangerous, two are deadly, but three will leave no trace of your existence.

Large, silent, and somewhat elegant in their movements, flow wolves are fierce predators that do not hesitate when killing, whether hunting for food or defending themselves.

Though soft and fluffy to the touch, these wolves have crystals where there would be fur. These crystals can diffract, reflect, or absorb any light rays directed at them, an evolutionary adaptation that allows for more efficient hunting. The way light interacts with the wolves' bodies, combined with their swift and graceful strides, makes it seem like they are flowing through the air when moving, which earned them their name.

Flow wolves, as a species, are a notable dichotomy case in which the two variations of one specific characteristic do not follow sexual dimorphism. They can be either the whitest white or the darkest black, exact opposites from one another, with no distinction between males and females. Most packs contain flow wolves of both colours, which gives them an advantage when hunting in their natural habitats, full of dark caverns and snow.

No matter their colour, all flow wolves use the same techniques when sneaking up on prey. White wolves camouflage in the snow and other white environments, while black wolves do it in places with no light, waiting for the right moment to pounce on their quarry. The only way to know a flow wolf is near you is by looking into their eyes—and that means the wolf got close enough to attack.

The eyes of a flow wolf contain a double membrane, another evolutionary trait designed for better killing. The inner membrane is the eye proper and has scarlet pupils; the outer one works as a one-way mirror, reflecting all light that hits it. This way, it takes on the same colour as the rest of the hunter's crystals, making the wolf almost invisible. When they get close enough to attack, and if the hunted creature happens to shine a light at the wolves, the membrane will reflect that image, so the last thing it sees before being eaten is itself.

(Concept submitted by pavlogs_)