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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Magnus Lundgren / Wild Wonders of China / Lady crab (Charybdis japonica). Gulf of Bohai, Yellow Sea. Penglai / Dengzhou / Tengchow, Yantai, Shandong Province, China.
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Magnus Lundgren / Wild Wonders of China / Lady crab (Charybdis japonica). Gulf of Bohai, Yellow Sea. Penglai / Dengzhou / Tengchow, Yantai, Shandong Province, China.
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Magnus Lundgren / Wild Wonders of China / Lady crab (Charybdis japonica), male on floor of Bohai Sea, Yellow Sea. Zhifu Island, Shandong Province, China.
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Terry Whittaker / Herring gull (Larus argentatus) with shore crab (Carcinus maenas ), Chanonry Point, Moray Firth, Highlands, Scotland. June.
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Terry Whittaker / Herring gull (Larus argentatus) with Shore crab (Carcinus maenas ) prey, Chanonry Point, Moray Firth, Highlands, Scotland. September.
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Terry Whittaker / Herring gull (Larus argentatus) with Shore crab (Carcinus maenas ), Chanonry Point, Moray Firth, Highlands, Scotland. June 2017
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Juergen Freund / Mud crabs (Scylla serrata) in the water by the mangrove roots - split level image, Mali Island, Macuata Province, Fiji, South Pacific
