Gondwana is the ancient continental landmass that gives the book’s account of South Pacific wildlife its deep-time scale. It links the survival of the tuatara in isolated New Zealand forests and the unusual iguanas of Fiji to a world that existed before the present islands and continents took shape, while also sharpening the contrast between geological continuity and the rapid ecological disruption caused by people.

Ancient Landmass and Living Relics

The tuatara is presented as an exceptionally old survivor: a living representative of a reptile lineage that has remained remarkably unchanged for roughly two hundred million years. In the remains of Gondwana’s ancient forests, its nocturnal presence makes the distant past feel close. The account gives its survival physical dimensions—burrows sometimes shared with petrels, a body length of up to 70 centimetres, a body temperature of about nine degrees, and a lifespan exceeding a century. These details turn Gondwana from a remote geological name into a setting whose history appears to persist in living bodies.

The tuatara is compared with the coelacanth, another animal once known only from fossils and believed extinct until a fishing vessel caught one off southern Africa on 22 December 1938. Both are described as living fossils, though the narrator qualifies that designation with the warning that such survival may last only for now. The comparison makes Gondwana’s significance more than a matter of antiquity: it stands for the persistence of lineages once assumed to have vanished, and for the uncertainty of their continued survival.

Fiji, Gondwanan Fragments, and Island Biogeography

Fiji’s rare iguanas extend the Gondwana story beyond New Zealand. The narrator notes that Fiji has two iguana species, an unusual distribution because iguanas are not found elsewhere in Asia; one of the species also occurs in Tonga. Their presence had once been explained as a miraculous arrival from South America on floating vegetation. The text retains that possibility but introduces a deeper geological account: Professor Peter Newell of the University of the South Pacific suggested that Fiji’s iguanas could have a much older history than first supposed.

That interpretation draws on discoveries of crocodile subfossils. Because crocodiles can swim thousands of kilometres, their remains support the possibility that iguanas had been present in the region for far longer than assumed. Newell’s account treats the iguanas as Gondwanan relics, connecting Fiji with New Zealand, Australia, India, and Madagascar, places once associated with the same great continental platform before it broke apart. Madagascar’s iguanas provide a further point of comparison: the island formed part of Gondwana more than 150 million years ago. The animals’ distribution thus becomes evidence through which the former landmass can still be read.

The Field Observer and the Deep Past

Gondwana also shapes the narrator’s scientific outlook. A childhood fascination with reptiles that lived a hundred or two hundred million years ago helped lead him to biology, and he describes the question of why specialized reptiles disappeared as one that has never left him. His interest is not confined to fossil remains or colleagues’ descriptions: he prefers to study living species in their habitats before turning to systematic analysis and scientific monographs.

That approach makes the intact habitat as important as the animal. The narrator remarks that the tuatara and other ancient endemic species are preserved alongside biotopes that have also remained astonishingly intact for millions of years. Flying between islands over turquoise reefs, he sometimes felt like a modern Darwin. Gondwana therefore links field observation to evolutionary history: the living species matter not as isolated curiosities but as inhabitants of landscapes whose persistence offers evidence of the past.

Ecological Continuity and Fragility

The ancient history represented by Gondwana is set against the more recent ecological damage described across Oceania. The islands had maintained distinctive balances of endemic plants and animals, but introduced species, deforestation, and imprudent plantation development have damaged habitats and caused severe erosion. Attempts to control one imported pest by introducing another can create cascading harm, threatening birds and native reptiles. The contrast is stark: natural systems accumulated over millions of years can be disrupted with striking ease.

Taveuni shows both the continuing richness and the pressure on island ecosystems. More than a hundred bird species occur there, many native, including the Orange-breasted Pigeon. The absence of the Indian mongoose has been decisive for that abundance, although imported magpies have occupied habitat and cane toads have displaced native frogs toward the forest interior. The island’s ecosystems are not untouched, but their surviving diversity gives concrete form to the value of ecological continuity.

At Bouma, local residents refused an offer to sell forest land for logging and instead supported turning the area into a national park. The resulting protected area covers 5,000 hectares, with villagers maintaining trails and visitor facilities; similar projects were being planned elsewhere on the island. This contemporary act of protection does not restore Gondwana, but it answers the book’s central ecological contrast: the ancient inheritance of island life can be damaged by short-term exploitation, while local stewardship can help preserve the habitats in which its surviving traces endure.