Sally Lightfoots are very common, and you can get fairly close before they scuttle in to a crevice in the rocks. These creepy chappies run around on the tips of their toes, scuttling along the volcanic rocks of the Galapagos, providing a stunning contrast to the black background. Their main diet is algae, but they will also eat plants and scavenge on dead animals, including other Sally Lightfoot crabs!

For more arthropods and facts, visit our Arthropods gallery on Flickr.

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