Amazin' Amazon Mystery Animals Mystery
Animal #17:
House in a House in a House
I'm a single unit houseboat protected by my hull/ I'd invite you in for tea, but I'm afraid my house is full/ For inside my house are forty more
which I'll deposit in the shore/ From those houses will
emerge, with a waddle and a surge/ Mini-houseboats just like me,
to paddle the river as wide as a sea.