[3] The Ulch people are often classified as one of the ancient Paleosiberian peoples, which is however not an ethno-linguistic group but a term applied to various ethnic groups of Siberia which do not belong to the bigger Northeast Asian populations (such as Turkic, Mongolic and Tungusic populations).

The ancient winter dwelling, the "hagdu", was a ground frame structure made of pillars and logs with a gable roof without a ceiling, and an earthen or clay floor.

Summer dwellings were of two types - quadrangular made of poles with gable roofs, covered with bark (daura) and pile letniki (gengga).

The traditional fishing equipment consisted of gear nets, rides, hook tackle, different types of stocks and the like.

Each of them was used, depending on the season, weather conditions, water level in the river, fishing objects, and many other characteristics.

The main method of preserving the catch was to make yukola - fish dried in the wind and sun in the form of thin long plates.

At the end of the 19th century, sable was already rare on the Amur, so they went on long expeditions to Sakhalin, to the basins of the Amgun, Gorin and Tumnin [ru], on the coast of the Tatar Strait and on Hokkaido.

In winter, fur coats were also worn, cut like a robe and covered on top with cotton or silk fabric.

Winter hats looked like a hood with a top made of white dog kamuses and a fox trim around the face.

[4] According to Sukernik et al. (2012), the mitochondrial DNA of the present-day Ulchi population belongs predominantly to haplogroup Y1a (69/160 = 43.1%), which is shared with Nivkhs, Koryaks, Evens, and Mongolians and is estimated to have a time to most recent common ancestor of approximately 6,000 (95% CI 3,300 <-> 8,800) years before present on the basis of complete genomes or approximately 1,800 (95% CI 800 <-> 2,900) years before present on the basis of synonymous positions.