50000 years ago at the arrival of the first humans in Australia there were actually many carnivorous animals present, e.g. the marsupial lion at the...
response The peacock tail effect is one of the theories for the sabertooth's long teeth yes , though not a very convincing one. I guess I put...
reposnee Great, what would be even nicer is allowing to go the other way as well. Down to -150m to see how it was during the glacial period. And...
response I you are pointing to that increasingly large teeth in order to show off caused the demise of the sabertooths, then I think that seems...
More theories After reading more on the subject some authors have refined the overkill theory to overill? Extinctions were not caused solely by...
Who needs predators anyway? I guess most people on earth would vote in favor to save the tigers, almost all but people living close by tiger...
title Hapgood's theory was based on movement of the earth crust, I don't think movement of the crust was the reason for the shifting of the...
Earth axis tilt I think a geographical pole shift seems more likely. The earths tilt is most probably caused by the magnectic relations of the...
Back to the original post I think the comet theory is quite intriguing and is far better than the 3 existing theories but it does not explain the...
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