A portent of death may have helped create life
THEY WERE flickering blue flames hovering in swamps. They were the spirits of those who had died in the murky waters, bent on leading others to the same fate. They were will-o’-the-wisps and they do exist. Yet, spirits they are not. They are actually caused by the sudden ignition of methane bubbling out of swamps. What remains unknown is how ignition occurs.
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