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Fig. 1. Two stages of tentacle expansion, 0% (1,3,5,8) and 100% (2,4,6,7,9), in the five coral species. (1,2) Favia favus; (3,4) Goniopora lobata; (5,6) Plerogyra sinuosa; (7) Cladopsammia gracilis; (8,9) Stylophora pistillata.