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Hermit crabs find new homes in plastic waste: shell shortage or clever choice?

By Mark Briffa, Professor of Animal Behaviour, University of Plymouth

Land hermit crabs have been using bottle tops, parts of old light bulbs and broken glass bottles, instead of shells.

New research by Polish researchers studied 386 images of hermit crabs occupying these artificial shells. The photos had been uploaded by users to online platforms, then analysed by scientists using a research approach known as iEcology. Of the 386 photos, the vast majority,…

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