Nubina atelerix

 are a species of small, furry rainforest dwelling abnormals with the ability to cloak themselves. The common name dubbed for this creature is nubbins. The name was at first something made-up by Ashley; it was then quickly adopted by the rest of the team at the Old City Sanctuary.

Biology
They are cute, brown, round and hairy creatures, that breed faster than rabbits, with a well developed camouflage system, that makes them invisible. In small groups they're fairly docile, but with large enough numbers they can easily kill much larger predators. Ashley Magnus named the creatures after their discovery.

Nubbins have an extremely short reproductive cycle of only a few hours and it takes less than a day for newborns to reach adulthood and sexual maturity. Also, nubbins give birth to litters of over a dozen. It's because of this rate of metabolic growth nubbins have ravenous appetites. To aid this, they have extremely powerful jaws, capable of easily chewing through metal.

Nubbins have scent glands that release pheromones that not only increase their own reproductive cycles, but also increase the reproduction of other species in their habitat. It's for this reason nubbins seem to reproduce so quickly and why they were common wedding gifts.

Cold temperatures depress nubbins' growth and reproduction cycles.

Nubbins behave with a hive mentality like bees and communicate through the use of ultrasonic sound waves.

History
There are several legends about nubbins in equatorial rainforest cultures where they're highly prized as symbols of fertility and bountiful harvest. In some societies they were common wedding gifts to promote happy marriage; when they turn invisible it's seen as a warning of coming danger.