Red Rock Crab Navigates Barnacle-Covered Tidal Surface

Red Rock Crab Navigates Barnacle-Covered Tidal Surface

Saturday, July 18th, 2026 at 3:15:17 PM · 2026/Schoolhouse Beach Tide Pools

A small red rock crab (likely Pachygrapsus crassipes or similar species) is photographed from above as it navigates a steeply angled, algae-covered rock surface at Schoolhouse Beach tide pools. The rock is densely populated with limpets, barnacles, and various encrusting organisms in varying stages of growth, creating a rich intertidal mosaic of grays, greens, and browns. The crab's vivid orange-red carapace with white mottling stands out dramatically against the muted tones of the rock surface. The aerial/top-down perspective gives a compelling bird's-eye view of the intertidal ecosystem, highlighting the diversity of sessile invertebrates sharing the habitat. The image captures the rugged beauty of the rocky intertidal zone, likely photographed during a low tide exposure.

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