nemesis_juggernaut writes:
I'm sure the consensus is that it is attributed to continental drift. There is another theory that the magnetic polarity shifts every few thousand years and the poles reverse. Some have tried to make persuasive arguments in defense of it to explain why tropical plants are in an arctic region, but this particular claim lacks some backbone.
Having
some background in research and calculations/computer modelings of actual data from space probes on planetary magnetic fields as well as
some background in working in plant labs, I must admit that I am quite ignorant on how magnetic polarity shifts can explain tropical plant life being found in arctic regions, and as far as I know I have not heard of a single proposal for such a "theory". Mind explaining how it works or who proposed it?
In any case, the point I'm trying to make is we are all looking at the same evidence, we are just interpreting it differently.
What does finding tropical plants in arctic regions tell you?