From Popular Science:
“Shark bites are a real threat to undersea fiber-optic cables. No, really. Google actually goes so far as to wrap its wires in a Kevlar-like material to prevent damage from sharks, a company spokesperson recently disclosed. As you can see in the video below, the animals have been known to bite cables. “
Some believe that these deep-sea eating machines are attracted to both the electric and magnetic fields emitted by underwater cables and mistakenly detect them as prey. Others simply shrug off this explanation as ‘sharks will be sharks’ and the ferocious fish would attack any ol’ chuck of plastic they find.
After previous bills from shark attack related repairs, modern cables are wrapped in a Kevlar-like material to protect them. Now if we can just get similar armoring to protect our household electronics cables from household pets.