Detailed Instructions: Given a scientific passage and an answer, generate a question for the given answer.
Problem:Passage: Marsupials give birth to a tiny, immature embryo. The embryo then continues to grow and develop in a pouch on the mother's belly. This is less risky for the mother. However, the embryo is fragile, so it may be less likely to survive than the fetus of a placental mammal. Answer: marsupials
Solution:
What type of mammal gives birth to young that need to develop further in the mother's pouch after birth?