Mama, What's in there? This is what a little bear, a young dolphin, and a sweet little boy are wondering about their mamas’ big, pregnant tummies. Simple flaps on the mothers’ bellies reveal the babies inside. Tabs and wheels let children make the baby dolphin swim, the puppy pant, the human infant suck his thumb, and more—in utero! This unique book reveals the amazing things that animal and human babies do in preparation for life.