Harleyquinn: Actually the Monotremes are the minority among the mammals, not the marsupials.
As for there being more marsupials in Aus. & New Z. is because after the last mass extinction before the land masses separated there weren't near as many if any placentals there. Thus the placentals didn't have the chance to crowd/devour them out.
There are/were several marsupial carnivores there, so it's not a matter of no carnivores, so much as it is a matter of less placentals! SHANTI
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As for there being more marsupials in Aus. & New Z. is because after the last mass extinction before the land masses separated there weren't near as many if any placentals there. Thus the placentals didn't have the chance to crowd/devour them out.
There are/were several marsupial carnivores there, so it's not a matter of no carnivores, so much as it is a matter of less placentals!
SHANTI
Yes it Was/Is
Soph