tools. One amazed witness reported them landing in such numbers that they put out a good-sized fire. It was, according to most witnesses, like experiencing the end of the world. The noise was deafening. One swarm was estimated as being 1,800 miles long and perhaps 110 miles wide. It took five days to pass. It is thought to have contained at least 10 billion individual insects, but other estimates have put the figure as high as 12.5 trillion, with a massed weight of 27.5 million tons. It was almost certainly the largest gathering of living things ever seen on Earth. Nothing would deflect them.
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