Statement-I: Marsupials are a group of mammals native primarily to Australia, New Guinea, and the Americas. They are characterized by the pouch (marsupium) in which most females carry and nurse their young. Marsupials are not naturally found in the Indian subcontinent. This statement is correct. Statement-II: This statement is incorrect. Marsupials inhabit a wide variety of environments, including forests, woodlands, grasslands, deserts, and even urban areas, not just montane grasslands. Furthermore, they coexist with various predators in their native habitats. Their survival is not contingent upon the absence of predators.