Google Inc (NASDAQ:GOOGL) has been forced to reinforce its undersea internet cables because sharks keep biting them.

Their fiber-optic cable network, that spans more than 100,000 miles around the world is being reinforced with protective matting made out of a Kevlar-based material.

Sharks were first noticed being attracted to the undersea sea cables in the mid-1980s but the reason for this behavior is not known yet.

white-sharks
According to the researchers, the age of the oldest female white shark sampled was 40, and that of the oldest male was 73. Photo: Reuters

It is suggested that the sharks are attracted to the electromagnetic signals given off by the undersea cables which resembles a field created by fish.

Here is a clip of an underwater camera catching a large shark biting at a fiber optic cable in 2010.

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