Hrossaks are a fictional species from the works of J.R.R. Tolkien, particularly featured in his book The Silmarillion. They are described as horse-like creatures that possess both intelligence and the ability to communicate. Hrossaks are known for their unique culture and language, which sets them apart from other beings in Tolkien's universe. In the stories, Hrossaks inhabit the land of Middle-earth and are often associated with the Hross people, who are depicted as a race of intelligent beings. Their characteristics and behaviors reflect themes of nature and harmony, emphasizing the connection between creatures and their environment in Tolkien's mythology.