could
what speculative drivel. Does someone get paid to write this nonsense?
Yeah, who do these people think they are coming up with hypotheses - scientists?
And what makes these so-called scientists think they can get away with making anything less than categorical assertions of god-like certainty? Anything less than WWF-like bravado is the same as total capitulation to all alternate theories. Science has NEVER made progress by making tentative, qualified statements.
It'll be a scientific "fact" by tomorrow. Just like all the other speculation masquerading as scientific "facts" that the evolution religion is pushing down our throats.