Endurs
Endurs are a fictional species that appear in the fantasy novel "The Lord of the Rings" by J.R.R. Tolkien. They are depicted as a race of wild, horse-like creatures that inhabit the plains of Rohan. Endurs are described as being incredibly swift and strong, with flowing manes and tails. They are often associated with the Rohirrim, the people of Rohan, who are skilled horsemen and rely on these creatures for transportation and warfare.
In Tolkien's legendarium, the Endurs are not merely animals but possess a degree of sentience and loyalty.