Leitão, Marina de Sá, and Câmara de Araújo. 2014. “The Leaping Behavior of the Sally Lightfoot Crab Grapsus Grapsus (Crustacea: Decapoda: Brachyura) at an Oceanic Archipelago”. Journal of Research in Biology 4 (4), 1357-64. https://ojs.jresearchbiology.com/ojs1/index.php/jrb/article/view/351.