The predatory gurrath, although feline in character, is really a variety of mongoose. Its principal prey is the tapimus.
The gurrath, Oncherpestes fodrhami, is a large, jaguar-like herpestine mongoose that is the foremost predator of the South American tropical forest.
Its ancestor, the small Asian mongoose, was introduced by humans to the then offshore Caribbean islands at the north of the continent, where it became a pest and overran them. When the islands became fused to the mainland the small Asian mongoose spread southwards and developed into its present jaguar-like form. Its chief prey is the tapimus.