大象传媒

In August 2007, on an island off Canada鈥檚 west coast, the remains of a human foot were found washed up on a beach.

Six days later, on another beach fifty miles away, a second foot was found. But, strangely, it doesn't match the first - they鈥檙e from different people.

The 大象传媒鈥檚 Celia Hatton travels to Vancouver to hear how more than twenty feet have been found in the area since then, and to speak to the investigators and scientists who鈥檝e worked to unravel the mystery of why they started appearing.