A concern about crashing numbers of a particular species of penguin in recent years, the rockhoppers, shows that there may be numerous complicated factors causing this, and it is not always easy to know for sure. In the Falkland Islands alone, the species numbers have dropped from 600,000 to 420,000 in just 6 years, and down from 1.5 million in 1932. But from all their habitats millions have recently vanished.
Scientists are struggling to wonder whether it is starvation due to overfishing, climate change, a combination, or some other factors affecting this species.
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