Monotreme
From Conservapedia
This article has been identified as having a lack of credible references. You can and are encouraged to make this article better by contributing. Please locate accurate and reliable reference sources for this article. Please remember to abide by The Conservapedia Commandments.
Monotremes are a small group of Australasian mammals, consisting of the duck-billed platypus and the several echidnas.
In addition to their unusual physical conformations, monotremes are remarkable for being the only mammals to lay eggs, and to have poison glands (spurs on the back legs of the male platypus); these were an unpleasant surprise for several early zoologists. A feature is the absence of well-developed mammary glands, the young platypi and echidnae being nourished by nutritious emissions from their mothers unmodified sweat glands.
