AI Summary

Researchers observed that sand hoppers (Megalorchestia spp.) on California beaches act as active earth‑moving agents, excavating up to 50 kg (110 lb) of sand for each meter of shoreline each day. These tiny, shrimp‑like crustaceans, commonly seen feeding on kelp, were found to relocate massive quantities of sand, effectively reshaping the coastal substrate. The study highlights the significant role these organisms play in coastal sediment dynamics.

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