It is said...
that in the time of Giants, a pair of dwarves were gifted with the ability to change their shapes. The brothers each preferred a specific shape expressing their most characteristic personality trait. Fafnir, the eldest, preferred the shape of a chromatic dragon. He satisfied his greedy nature by using this form to accumulate and guard a great hoard of golden treasures. His brother, Otr, favored the shape of a simple river otter. He reveled in the beauty of the mountain streams and lakes, spending endless days feasting on salmon, playing in the waterfalls, and basking in the summer sunshine. Apparently, Otr was also very popular with the local population, especially the females, because he is credited with being the father of the Mountain Selkies.
Like their ocean or river dwelling cousins, mountain selkies make their homes beside the deep alpine and sub-alpine lakes of the Ryopytav mountains.
In their humanoid form, selkies resemble dwarves. They average around 4 feet tall, with a heavy-boned build. Culturally, however, selkies are completely unlike the stereotypical dwarf. They love play, rich food, and luxeries. A selkie might not be overtly greedy, but he would absolutely expect you to give him your beautiful ring because it would look so much better on him. Because of these consistant personality traits, it is speculated that they have more than a bit of feywild in them.
A Mountain selkie deprived of her pelt is unable to shapeshift, and must remain in dwarven form. There are legends of hunters trapping a selkie this way in order to take her for a wife. Most of the time, this didn't end well for the hunter.
Mountain selkies have a simple morality. They love those who protect their lake and treat them with gifts (a pretty bead bracelet will do). They hate those try to harm them, or threaten their home. They consider the theft of a pelt equivelent to an act of great violence.
Selkies maintain their security by constructing their homes in caves accessible only through the depths of an adjacent mountain lake. In their otter form, they can easily swim and hold their breath in order to gain the entrance. Just as skilled as any dwarf, selkies often construct elaborate and many-chambered lodges. It is common for extended families to share a lodge Communal spaces are designed to facilitate large banquets and other social activities.
As weather permits, selkies spend most of their time outside their lodge, hunting and playing. Selkies love watersport, hunting, and (quite frankly) sex. During the long mountain winters, they pass the time with song and storytelling. Winter is also the preferrred season for new construction in the lodge, and for repairing gear or crafting new items.
Genetics and Reproduction
Growth Rate & Stages
Ecology and Habitats
Dietary Needs and Habits
Geographic Origin and Distribution
Perception and Sensory Capabilities
Dear reader, let me preface this entry by admitting that all the information herein was collected and recorded by an outsider. The author is not a mountain selkie, and so is not entitled to present this as uncontested fact. I am attempting to faithfully pass on that which I have observed and been told. Forgive me my errors.
I like the story of the dwarf brothers, it would be cool to read even more of what happened to them!
The story of the dwarf brothers is actually part of Norse mythology in real life. you can find a full rendition of the story here: https://pantheon.org/articles/o/otr.html