culture
Their 伊玛堪 (yimakan), long epics told in alternating song and speech, is on the UNESCO list of heritage in urgent need of safeguarding. The well-known song 《乌苏里船歌》 (Ussuri Boat Song) is built on a Hezhen folk tune.
history
The same people across the Amur and Ussuri in Russia are called the Nanai. Their language belongs to the Tungusic family, like Manchu, and has no traditional script.