“Marsupials are mammals that nurture their young in a:”

"Marsupials such as kangaroos and koalas are mammals characterized by a pouch where their underdeveloped young continue to grow and nurse after birth. This reproductive strategy distinguishes them from placental mammals allowing early birth and external development. Found primarily in Australia and the Americas marsupials exhibit diverse adaptations to their environments. Their pouch-based nurturing is a key evolutionary trait studied in biology to understand mammalian diversity and adaptation contributing to conservation efforts and ecological research in regions where they thrive."