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Sally Lightfoot crab - Grapsus grapsus. (Note how they stick the tips of their legs in the tiny holes in the lava to hold on tight.)

Galapagos Islands

 

Galapagos sally lightfoot crabs can get an amazing hold on the lava rocks. They will stick the tips of their legs in the tiny holes in the lava and hold on tight. This way, they can avoid falling off, even when powerful waves wash over them.

Very common, colourful, incredibly agile and has a symbiotic relationship with iguanas. This crab is a delight to watch because not only is it flamboyant like a Caribbean dancer, but it also runs and jumps in all four directions with amazing energy and agility.

The Sally Lightfoot Crab, locally known as “zayapa,” stands out for its colorful appearance and its ability to adapt to rocky coastal environments. Its role in the dynamics of coastal marine habitats is fundamental, as it mainly feeds on marine algae and organic debris, promoting the recycling of essential nutrients. Additionally, these crustaceans are a vital part of the food chain, preyed upon by seabirds and other predators.

 

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Uploaded on December 7, 2023
Taken on November 20, 2023