Yawn. More worthless speculation masquerading a science. Gotta publish, gotta publish.... even if it’s pure conjecture. I can make stuff up too. Mine is more interesting. How’s this? The mammoths were wiped out by.... Bush!!
I have a better theory. These large mamals were so flatulant that a thick layer of methane settled down on the continent depriving them of oxygen, so they all suffocated. How's that for a theory?