Warning Spoilers through Straits of Hell.
They are race of sentient beings who are found within the Republic of Real People.
They are, on average, around the same height as Humans and are covered in a generally pale colored fur. Many believe them to be a hybridization of Humans and Lemurians as they share many characteristic with both races however this has as of late been disproved. There is one piece of contradicting information as in some cases they are mentioned to have tails while in other cases they are not.