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Biologist Liz Bonnin embarks on a three-part adventure across the Galapagos archipelago to discover new species and record how the wildlife on these equatorial islands is adapting to climate change.

Her first stop is the chain’s highest point, Wolf Volcano on Isabela Island, where the research team want to find out if the pink iguana, a newly discovered species, survived 2015’s eruption, the first for 33 years.

Liz also joins a team studying giant tortoises threatened by drought, and during a deep sea dive in a submersible is one of the first to spot some rarely seen marine life, including a warty octopus.

‘That was the most exhilarating thing I’ve ever experienced!’ she exclaims.