Some of you may have read "Last chance to see" by Douglas Adams. The book, a documentary about endangered species, describes how the Yangtze River Dolphin population declined drastically in just one or two generations. Those dolphins were not slowly killed by man for food. They simply died, because all those engine ships going up and down the river rendered their sonar useless.
It is now 3 years since a dolphin was last sight

Anyone who has ever dealt with fiber optic cable knows that you can only bend it so far before the signal degrades or drops all together. That situation has now changed with Corning's announcement that it has developed fiber optic cable which can be bent at nearly any angle with virtually no signal loss.