Undersea spies snoop on oyster bed raiders

Electronic spies come in all shapes and sizes, but none is as funny looking as an oyster impersonator called the Flex Spy now infiltrating the waters off western France.

Looking for all the world like the bivalves it is protecting, the plastic imposter is fitted with a circuit board that allows it to snitch on thieves.

Invented by French startup Flex-Sense, the device has been on the market since September.