Archipelagos are a cluster of islands and the species living there are vulnerable to introduced species like rats and cats

Archipelagos are a cluster of islands and the species living there are vulnerable to introduced species like rats and cats. Photo: National Photographic.

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The native species on small islands are vulnerable to introduced species such as rats and cats because the animals therein have not developed defences against these predators through natural selection over many thousands of years.

These predators have been introduced to these islands by people. We should not forget that. Which is the worst: rats or cats?



Please click on the link above the photograph on this page to find out.