• Fri. Jun 18th, 2021

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Hermit crabs choose by colour when selecting a new shell for a home

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Hermit crabs preferred red shells over lighter colours

Melanie Chocholek, Scottish Oceans Institute

Hermit crabs prefer to occupy darker-coloured seashells, especially if they are living in a dark and gloomy environment.

These tiny crabs often swap shells as they try to find their ideal home. Research has previously shown that hermit crabs on the hunt for a new shell consider its size, condition and shape – features that vary depending on the species of animal to which the shell originally belonged.

To see if colour is also on their list, James Rimmer at the University of St Andrews, UK, and his …