In 2004, when marine biologist Dr Brian McCormick stumbled across a recording of mysterious underwater sounds, he launched a scientific investigation to uncover the creature responsible. In search of conclusive proof, he and his research team are called out to an unusual whale stranding in South Africa. Here they find the part-digested remains of an animal none of them can identify.

Episode Length: 01:20:00

Year: 2010

Episodes: 1

This documentary is available to watch for FREE on Planet Knowledge, a free to watch video on demand channel on Freeview HD (Channel 265), Youview, Samsung connected TV’s, selected smart TV’s, tablets and smartphones using Android or iOS.