Bronwen and Lila were working on coloring, and Lila asked if the animal she was coloring was a kangaroo. Allow me to try to recreate the conversation:
L: Brawen, is this a kangaroo?
B: ah, yes Lila! It is!
Me: Lila, do you know where a kangaroo carries its baby?
B: In its pouch!
Me: That's right, Bronwen.
B: Why do they carry their babies in a pouch?
Me: Because they are a kind of animal called Marsupials. Marsupials carry their babies in pouches. Another animal that is a marsupial is a koala.
B: Yeah, Lila, that is the kind of specie it is.