Describes how different animals lay their eggs and their life cycles.

"Identify eggs and animals that lay them with clues in this guessing book"-- "Written by a mammalogist at the Smithsonian, this clever preschool page-turner pairs seven eggs with information about the animals' survival mechanisms, asking kids to guess which animal laid which egg. Whose Egg Is That? reveals the animals--ranging from penguins to platypuses--in their own habitats." -- Amazon.com.