Two mammals that lay eggs: the Platypus and the Echidna
The duckbilled platypus is found only in Tasmania and eastern Australia. European scientists who first studied platypus specimens thought a clever taxidermist had stitched together parts of different animals. The “patchwork” appearance of the platypus is seen only by those who believe each animal must be very similar to other animals. In fact, the platypus is perfectly designed for its environment.
http://www.creationscience.com/onlinebook/LifeSciences13.html
Beware that the above link leads to a creationist website. From the same website, here's an ilustration of "Saturn, DNA, and Description of Ark.":
http://www.creationscience.com/onlinebook/webpictures/introduction.jpg
