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Members of the Family Cancerae have larger and stronger leg-mandibles than their Natanda cousins, so use them more for getting around, and their paraglossae are longer and more capable of gathering food as well. There are few differences between aquatic and terrestrial species, as both crawl along the ground/lakebed and drag their bulb-like lung-tail along behind them (it’s supported from beneath by a cuttlebone-like structure that keeps it from being buffeted by the terrain too much).
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