The platypus is a monotreme. It is not a marsupial.
The three divisions of living mammals are the
monotremes - platypus, and two (at least) kinds of
echidnas-; marsupials, and placentals. The
monotremes lay eggs, the marsupials give birth to
very slightly developed young, about equivalent to
an early fetus of a placental, and nourish them in a
pouch. The placentals nourish the fetus internally
for a longer time, via the placenta, and give birth
to much more completely developed young, some of
which are capable of swimming or walking almost
immediately after birth.
2006-07-31 07:13:02
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answer #1
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answered by Anonymous
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a monotreme, an Eastern Australian or Tazmanian egg laying mammal. Is the most primitive mammal. Only other animal in this group is the Spiny Anteater.
2006-07-27 13:47:31
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answer #2
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answered by mr.e_mess79 3
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It is a monotreme: a mammal that lays eggs. An echidna (also found in Australia) is another monotreme (and I think the only other).
2006-07-27 13:43:30
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answer #3
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answered by gp4rts 7
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The platypus is a living contradiction. The answer is...........all of the above.
2006-07-27 13:57:19
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answer #4
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answered by Samurai Hoghead 7
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A platypus is a marsupial.
2006-07-27 13:39:41
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answer #5
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answered by Dr. Rob 3
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monotreme - Egg laying mammal
2006-07-27 13:39:38
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answer #6
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answered by D 4
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An ugly one.
Its a marsupial but it lays eggs.
2006-07-27 14:34:13
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answer #7
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answered by Anonymous
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i believe it is in its own class
2006-07-27 13:41:56
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answer #8
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answered by jondoe 1
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