The Tynnan homeworld, located on the ancient hyper lane known as the Shipwright’s Trace in the Expansion Region, Tynna can best be described as a winter wonderland. With average temperatures five standard degrees below zero, the planet is covered in frost-blanketed forests of many different species of coniferous trees, from dwarf firs just a few meters high on the fringes of the planet’s many glaciers, to towering blackwood pines over sixty meters in height that dominate coastal forests. Despite the cold, Tynna is not a planet blanketed in snowdrifts. For the most part, except at higher elevations and on the glaciers, snow tends to be less than half a meter deep and grazing animals face few difficulties locating hardy grass, fecund moss beds and carpets of lichens on which to feed. Plant growth is helped by the planets thirty-three standard hour days and fertile soil. A notable absence among Tynna’s flora is any form of flowering plant. Insects never evolved on Tynna, due to the cold, and since one of the major incentives for the evolution of flowering plants is the ease of attracting insects, the planet’s ecology simply skipped them.

A host of specialized cold-weather creatures have evolved to take advantage of Tynna’s bounty, many of them found nowhere else in the galaxy. Although species common to cold weather planets across the galaxy are abundant on Tynna, for example, tauntaun, doemir bear and wampa, many indigenous species of bird and mammal grace the icy forests, sparkling glaciers and frigid oceans, filling in niches that would be filled on other worlds by insects, amphibians and reptiles. These animals vary tremendously in size. Great eagles with seven-meter wingspans hunt the mountain slopes for surefooted ungulates, while in the coastal forests, tiny finches no longer than a child’s little finger flit among the pine boughs searching for ripe pine cones. The diversity of pinnipeds is staggering, with no fewer than two hundred and forty extant species of seal, sea lion and walrus identified to date along the icy coastline and amongst the numerous icebergs.

This natural diversity is carefully guarded by the native Tynnan, who are very observant of the web of life on their native world. Their superb management skills and excellent diplomacy has seen them win numerous concessions from nearby systems, which, while militarily stronger than the Tynnan themselves, have been persuaded to protect the planet and its natives through a series of treaties and commercial pacts, including key business agreements with the Corporate Sector. These agreements also preclude the Tynnan from developing their own fleets but have so far been outstandingly successful in guaranteeing the Tynnan way of life.