Vart

"The Vart is a small, sharp-toothed winged mammal, carnivorous, which commonly flies in flocks." — Explorers of Gor, page 36.

"There were several other creatures in the caves but I am not sure of their classification. I could, however, recognize a row of brown varts, clinging upside down like large matted fists of teeth and fur and leather on the heavy, bare, scarred branch in their cave. I saw bones, perhaps human bones, in the bottom of their cave." — Priest-Kings of Gor