Sminthopsis is a genus of small marsupials commonly known as dunnarts. They are native to Australia and New Guinea, where they inhabit a variety of environments, including forests, grasslands, and deserts. Dunnarts are nocturnal and primarily insectivorous, feeding on insects and other small invertebrates. These animals are characterized by their slender bodies, large ears, and long tails. There are several species within the Sminthopsis genus, each adapted to its specific habitat. Like other marsupials, dunnarts give birth to underdeveloped young that continue to grow in the mother's pouch, similar to other members of the marsupial family, such as kangaroos and koalas.