Balut is an duck or chicken egg that contains a partially developed embryo. Generally, the egg is boiled and eaten directly from the shell, bones, feathers and all.
It is considered a delicacy in many South East Asian countries, especially the Phillipines and Vietnam. However balut is sold worldwide, including in Australia.
Let's make balut illegal in Australia!
Here are some images:
*warning very graphic*
http://www.junch.com/balut-eggs/
http://northcoastcuisine.blogspot.com.au/2010/05/balut.html
http://en.wikipedia.org/wiki/Balut_%28egg%29