+Monotremes are a unique order of [mammals](/wiki/mammal) distinguished by their ability to lay [eggs](/wiki/egg), rather than giving live birth. These ancient creatures, including the [Platypus](/wiki/platypus) and Echidna, still nourish their young with milk, a defining mammalian trait.
+## See also
+- [Mammal](/wiki/mammal)
+- [Marsupial](/wiki/marsupial)
+- [Placental](/wiki/placental)
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