There are exceptions to every rule, some reptiles and fish bear live young, and some mammals lay eggs Monotremes (/ ˈmɒnətriːmz /) are mammals of the order monotremata They are the only group of living mammals that lay eggs, rather than bearing live young The extant monotreme species are the platypus and the four species of echidnas Monotremes are typified by structural differences in their brains, jaws, digestive tracts, reproductive tracts, and other body parts, compared to the more. Only five species exist today, all found exclusively in australia and new guinea
These animals represent a distinct branch on the mammalian family tree, showcasing a blend of traits. With their ancient origins, strange biology, and limited range, platypuses and echidnas are natural marvels.
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