David Gould
Pearl Harbor sucked. WinAce didn't.
- May 28, 2002
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Alessandro said:DG
One would be through early settlers.
People and animal migration, through the use of land bridges and so on.
Tectonic upheavals, accompanied by substantial rising and falling of sea floors 'Pleistocene'.
In 1883, Krakatoa erupted. The island remnant remained lifeless for some years, but was eventually re-colonised by a variety of creatures. Which is an example.
The main question is: why maruspial mammals but not placental mammals?
And why are there so few marsupial mammals outside of Australia?
And what about plants? Why do some plants only grow in Australia?
If human migration is the key, why didn't humans bring pigs or sheep or cows to Australia prior to white settlement? Why didn't they bring corn or wheat or maize?
Did they forget to bring it? Did they forget all about agriculture for some reason?
But ignore those for the moment: why did no placental mammals make it to Australia? For example, why didn't rabbits follow those land bridges? Or cats? Or foxes? We know the Australian environment suits those creatures, as since white settlement/invasion their populations have exploded.
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