Animal embryos develop in eggs, which provide development, nourishment and protection. The egg structures of different species differ in unique ways that ensure the survival of their embryos. Examine the eggs of snakes, birds, frogs, and other animals up close to learn about their differences and how the habitats in which they are laid relate to their form and care.
Attention: Some of the items in this box are protected under the Migratory Bird Treaty Act and may only be borrowed by educational institutions that are open to the general public and are non-profit (such as a public or charter school), but may not be borrowed by private individuals or institutions without a special permit. If you have any questions about whether you or your institution qualify to borrow this box without a permit, please contact us.