Nick Upton / Close-up of a Common shore crab (Carcinus maenas) in a rock pool, vibrating its maxillae to aerate its gills and flicking its antennae, Cornwall, UK, March.
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Nick Upton / Close-up of a Common shore crab (Carcinus maenas) in a rock pool, vibrating its maxillae to aerate its gills and flicking its antennae, Cornwall, UK, March.
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Shane Gross / Unknown species of pelagic swimming crab, covered in barnacles swimming in the open ocean at night. She is tending to her eggs in a pouch. Anilao, Philippines.
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Georgette Douwma / Xenia swimming crab (Caphyra sp(2. Lembeh Strait, North Sulawesi, Indonesia.
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Nick Hawkins / Comparison of the invasive European green crab (Carcinus maenas) on left to native Atlantic rock crab (Carcinus irroratus) on right. Kejimkujik Seaside National Park, Nova Scotia, Canada. July.
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Nick Hawkins / Invasive European green crab (Carcinus maenas) with eel grass (Zostera marine) in Kejimkujik Seaside National Park, Nova Scotia, Canada. July.
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Nick Hawkins / European green crab (Carcinus maenas), an invasive species in North America, Kejimkujik Seaside National Park, Nova Scotia, Canada. July.
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Nick Hawkins / Invasive European green crabs (Carcinus maenas) collected by park staff in Kejimkujik Seaside National Park near Port Joli, Nova Scotia, Canada. July.
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Nick Upton / Velvet swimming crab (Necora puber) in rockpool. Near Falmouth, Cornwall, England, UK. September.
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Nick Upton / Velvet swimming crab (Necora puber) from English Channel. South Devon, England, UK. September.
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David Fleetham / Imperial commensal shrimp (Periclimenes imperator / Zenopontonia rex) on Spanish dancer nudibranch (Hexabranchus sanguineus) at night. Philippines.
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Magnus Lundgren / Wild Wonders of China / Swmming crab close to the surface, Sharp Island or Kiu Tsui Chau, Country Park, Hong Kong, China.
