Clam shrimps use their second antennae in addition to their legs for swimming, sometimes in an upside-down position, performing spiral or staggered movements. They can reproduce sexually, asexually (via parthenogenesis), or by both means. The females carry several hundred eggs attached to a specialized appendix; these eggs are usually shed when the female molts, although in some species, the eggs hatch in a brood pouch attached to the carapace. Some species produce drought-resistant eggs that can be dispersed by water or wind and are widely distributed.
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