Sierus Mice (see air us)

Sierus mice are small creatures that can be found in the steepest slopes of the highest mountains of An Gra. 
These tiny green rodents hide from predators by curling into balls and pretending to be clusters of moss. They will also roll themselves down hills and steep rock faces. They seem to be impervious to fall damage. 
There is strong evidence to suggest that their mossy camouflage is assisted by a tiny dram of magical illusion. This seems to be their only magical ability.
Sierus mice are very social creatures and will form small colonies wherever they settle. A solitary sierus mouse is likely to become depressed and will spend most of its time holding its own toes. They burrow or build nests and co-sleep in a fuzzy pile that helps to keep them warm as well as disguised. 
They migrate in small herds to wherever they find the best food sources, and frequently invade orcish hunting camps, where they are usually allowed to remain as long as they stick to eating insects and stay out of food stores. They are often considered good hunting practice for younglings as well as simple pets.
In a pinch, they've also been known to swim extensive distances. One colony was found to have traveled all the way across the Scastian Sea on a westward current by holding each others' toes and turning themselves into a tiny furry raft.

Basic Information

Anatomy

Sierus mice have plump bodies with thick fur that insulates them from the cold, and narrow faces. Unlike most mice, they have very small ears, which easily disappear into their fur, providing warmth and camouflage. Their dexterous forepaws are used for gripping and climbing.

Dietary Needs and Habits

They are omnivorous, and their broad diet allows for flexible food sources across the seasons. They commonly eat pest insects, grains, and on occasion each other. Other favored meals include real moss, ice lizards, and small rocks.

Lifespan

5-7 years

Conservation Status

Sierus mice will likely be happily eating cockroaches after the apocalypse.

Average Length

2"-3"

Body Tint, Colouring and Marking

Their fur is in shades of green, occasionally with grey mottling.

Geographic Distribution

• An Gra