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There may come a time when you find it necessary to euthanize your hermit crab to end it’s suffering. I’m providing the information that I found to be reliable. Please ensure that you are not confusing a surface molt with death. https://www.researchgate.net/post/What_is_the_least_drastic_method_to_kill_decapod_crustaceans_for_subsequent_preservation http://kb.rspca.org.au/What-is-the-most-humane-way-to-kill-crustaceans-for-human-consumption_625.htmlRead More →

In: Biology
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A hermit crab’s gills are enclosed in the branchial chamber, which functions as a lung. The branchial chamber is on the sides of the thorax, above the crab’s legs. A hermit crab breathes through its gills and branchial chamber, which must be kept moist in order to function. If the branchial chamber and gills dry out, the crab will die. Compared to aquatic crabs, land hermit crab’s gills are reduced in size, and if the adults are kept underwater too long, they will drown. [2] There are tufts of setae at various sites on the ventral surface that enable moisture from the substrate to beRead More →