The Cursotherium francis is an unusual creature. It closely resembles its immediate ancestors, the Leptictid mammals of the Cretaceous to Eocene, but in the special circumstances of the plateau, it has grown larger and more formidable. At 1.7 meters tall and 2 meters long, this mammal holds its own successfully against other predators of the same size, such as smaller theropod dinosaurs. They are able to compete so well with theropods because of a fast rate of reproduction and high metabolism, as well as its habit of eating dinosaur eggs and babies. It is mostly found in the scrubby, cool mountain uplands that surround much of the plateau, and besides eggs and hatchlings it also eats frogs, small mammals, insects, berries, and root vegetables of various local plants.