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Their evidence included finding stone harpoon points that hadn’t been used since the mid-1800s embedded in the blubber of whales recently killed by traditional whalers.

Before the 1930s, an estimated 40,000 blue whales were killed by whalers in South Georgia waters.

In this final section, a haunting combination of music and dance, Brooks calls up ghosts and ancestors from whalers and slave ships.

A whaler's forgotten aerial photos from 1937 have given researchers at the University of Copenhagen the most detailed picture of the ice evolution in East Antarctica to date.

Many were inadvertently introduced by whalers and sealers in the 19th and early 20th centuries.