On Stephen Perry's ranch near Galveston, Texas, a black cloud of insects settles on a herd of grazing cattle. The cows frantically swish their tails, trying ineffectively to brush off the bugs. One by one the cows drop dead—40 in all. Scientists at Texas A. & M. veterinary laboratories determine that as much as 5 gal. of blood has been sucked from some of the animals, more than half of a cow's normal blood supply.
This is not a scene from a 1950s sci-fi film, but a bizarre aftermath of Hurricane Allen, which early...
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