Samples also revealed several new species of deep-sea creatures thriving on the whale's remains, including a 'bone-eating zombie worm' known as Osedax burrowing into the bones and a new species of isopod crustacean, similar to woodlice, crawling over the skeleton.
Cameras then delve beneath the ice to unearth prehistoric giant sea spiders and woodlice before meeting back up with Attenborough at the South Pole, where he retraces the routes taken by early explorers.